Seal Beach Pier, ubicado en el condado de Orange, es uno de los muelles de madera más largos de California. Fue construido a principios del siglo pasado y ha sufrido daños provocados por tormentas y un incendio en 2016 que destruyó un restaurante ubicado al final del muelle. Afortunadamente, la mayor parte del muelle se salvó de las llamas.
Al igual que el resto de los muelles públicos de California, la pesca en Seal Beach Pier es gratuita. No se requiere una licencia de pesca, pero se deben seguir sus regulaciones con respecto al tamaño y especies de peces que se pueden capturar.
El muelle está abierto al público de 6 a.m. a 10 p.m. y cuenta con comodidades que incluyen áreas para limpiar pescados, botes de basura para los desechos y receptáculos para desechar hilos de pesca usados para evitar enredos con animales y problemas de contaminación en el océano. Los pescadores disfrutan del muelle individualmente o con amigos y familiares, trayendo su propia comida y sillas para disfrutar de la pesca y cerca de la playa. Durante los fines de semana, a menudo se puede observar a familias enteras disfrutando de un día de pesca.
En Seal Beach Pier es muy común pescar corbinas, mojarras, macarelas, pejerrey y lenguados. A veces es posible ver tiburones. También he observado cómo los pescadores trabajan en equipo y a veces comparten sus cebos cuando alguien va a pescar por primera vez. Los pescadores experimentados comparten fácilmente su cebo para que todos puedan tener un buen día de pesca.
Seal Beach Pier se encuentra dentro de la zona roja, donde se debe evitar el consumo de corvineta blanca, cabrilla, corvineta negra, pejerrey y barracuda debido a sus altos niveles de toxinas como dicloro-difenil-tricloroetano (DDT) y bifenilos policlorados (PCB). Los letreros en el muelle señalan a estos cinco peces como contaminados.
Las personas que consumen regularmente peces capturados cerca de las áreas contaminadas enfrentan mayores riesgos para la salud debido a la exposición prolongada a sustancias químicas tóxicas como el DDT y los PCB.
Debido a COVID-19, el Programa Educacional Pesquero de Heal the Bay ha suspendido sus actividades educativas en este muelle. Pero una vez que las autoridades de salud lo permitan, regresaremos al muelle para educar a los Pescadores sobre el riesgo de consumir pescado contaminado que vienen del sitio Superfund cercano a la península de Palos Verdes. Manténte informado sobre nuestro Programa Educacional Pesquero consultando nuestras últimas publicaciones en el blog.
We’re celebrating International Women’s Day and Women’s History Month by shining the spotlight on five environmentalists who inspire us.
Women of color are impacted by environmental issues like water pollution and climate change impacts at disproportionate rates as a result of systemic inequity and injustice.1 Racism and a lack of access to education, economic status, and health resources often leave women and people of color out of the conversations and decisions that impact them the most, specifically about land use, natural resources, and environmental policy.
Despite these challenges, women of color continue to create powerful and lasting change in their own communities and abroad.
We thank the environmentalists and activists who continue to fight for what is right despite facing opposition for their bold ideas and for simply being who they are. Women and girls are leaders in their communities and agents of change. Supporting and listening to them will benefit the health of our planet and people for generations to come.
Get to know five environmentalists who have an inspiring legacy of activism.
Wangari Maathai (1940 – 2011), Kenya
Founder of the Green Belt Movement, which has planted over 51 million trees, Professor Maathai focused on environmental conservation and women’s rights. She studied biology in her undergraduate and graduate school programs and later won the Nobel Peace Prize for her vast contributions to sustainable development.
Berta Cáceres was an indigenous environmental justice activist and grassroots leader who created the National Council of Popular and Indigenous Organizations (COPINH) in Honduras. She fought courageously against illegal and harmful mining and logging as well as the construction of a dam that would cut off water, food and medicine for the indigenous Lenca people. Cáceres Flores was tragically murdered in 2016, sparking international outrage. The Cáceres family continues to demand justice for this corrupt violation of human rights. 2
Isatou Ceesay is known as the Queen of Recycling in The Gambia, and rightfully so. Though she was kept from finishing school, she created the Njai Recycling and Income Generation Group, which turns plastic bag waste into purses, creating revenue streams for local women. Ceesay also educates and empowers women through environmental advocacy.
Winona LaDuke (b. 1959), White Earth Indian Reservation
Founder of the White Earth Land Recovery Project and Honor the Earth, LaDuke is an environmentalist and political activist with Indigenous communities. She focuses on sustainable development, renewable energy, climate change, and environmental justice. The White Earth Land Recovery Project is one of the largest non-profit organizations in the United States dedicated to recovering original land and maintaining tribal food, water, and energy rights. Follow Winona on Twitter and Instagram.
Vanessa Nakate founded The Rise Up Movement and uses her voice and platform to share stories about activists in Africa who are striking due to inaction against the climate crisis. Recently, she spoke at the COP25 event in Spain (the United Nations Climate Change Conference) and joined dozens of youth climate activists from around the world to publish a letter to attendees of the World Economic Forum in Davos urging them to take immediate steps to prevent further harm. Follow Vanessa on Twitter and Instagram.
About the author: Mariana Estrada is a digital advocacy intern at Heal the Bay. She grew up in Boyle Heights, Los Angeles where she enjoys a lively community of close-knit families and great food. She became interested in environmental issues like air quality at an unusually young age due to living in the city. Estrada’s area of focus is combining humanities and environmental issues to create effective and meaningful storytelling that renders real results. She studies English Literature and double-minors in Environmental Systems and Society and Environmental Engineering at UCLA.
1 Gender and climate change-induced migration: Proposing a framework for analysis. Author Namrata Chindarkar. Published by School of Public Policy, University of Maryland, College Park, USA. Published on 22 June 2012. Retrieved from https://www.researchgate.net/publication/254496452_Gender_and_climate_change-induced_migration_Proposing_a_framework_for_analysis 2 Berta Cáceres: 2015 Goldman Prize Recipient South and Central America. Published by The Goldman Environmental Prize. Retrieved from https://www.goldmanprize.org/recipient/berta-caceres/
Belmont Pier is popular for fishing and like other piers, a fishing license is not required to fish there. However, anglers must make sure to follow fishing regulationsregarding size, limits, and seasons for certain species.
Over the last 18 years, Heal the Bay’s Angler Outreach Program (AOP) has been educating anglers at Belmont Pier (and 7 other piers) about fish contamination, which fish to avoid eating, and which fish are safe to eat. This program is part of the Fish Contamination Education Collaborative (FCEC), which is managed by the US Environmental Protection Agency (EPA) as part of a far-reaching public education and outreach program about the Palos Verdes Shelf superfund site.
The Belmont Pier is located in the red zone, where levels of DDT and PCBs are high due to the nearby contaminatedsite. These toxins can travel through the food chain and accumulate in certain fish –fish caught in the red zone that should not be consumed are thewhite croaker, black croaker, barred sand bass, topsmelt, and barracuda.
Our Angler Outreach Program is currently suspended due to COVID-19, but when we were able to have in-person outreach, Belmont Pier was regularly one of the top piers in terms of numbers of anglers we talked to. In 2018, we reached 9,801 anglers across 8 piersin the LA region. AOP team members visited all the piers for equal amounts of time, but talked to over 2,500 anglers at Belmont Pier alone (approximately 25%).
Belmont Pier on February 25, 2021
When we conduct outreach to anglers, we also collect data on the types of fish they are catching and each anglers’ zip code . We collect zip code data from new anglers, and those we have not done outreach to before. In 2018, we collected zip codes from 1,165 anglers at Belmont Pier. The areas where the most anglers came from included Long Beach, as well as surrounding inland areas of Carson, Bellflower, Paramount, and Huntington Park. Collecting this data helps ensure that outreach is also conducted inthe communities where anglers reside, through the community partners of the FCEC, along with piers.
In 2018, we documented that anglers at Belmont Pier caught 1,051 fish (over a total survey time of ~144 hours). Of those fish, the majority (85%) were mackerel. We did find that 61 (or 6%) of those fish were on the “do not consume” list, including white croaker, topsmelt, and barred sand bass. There is still a need to continue educating anglers about fish contamination and ensuring that they have the knowledge to protect themselves and their families.
Necesitamos su ayuda para hacer responsables a los contaminadores y a sus aliados políticos.
Una reciente investigación del LA Times destapó que la corporación contaminadora Montrose no solo vertió medio millón de barriles con residuos contaminados con DDT en la bahía, el doble de lo estimado, sino que junto a agencias del gobierno escondieron el vertido cerca de la isla Catalina durante décadas, exponiendo a personas, animales y ecosistemas marinos enteros a uno de los compuestos químicos tóxicos más peligrosos que se ha hecho nunca.
Heal the Bay está presionando a las agencias y a los cargos electos para que se ocupen de limpiar el DDT y protejan la salud pública.
Foto de LA Times, David Valentine, ROV Jason
Originalmente desarrollado como insecticida, el compuesto químico DDT es conocido hoy en día por su impacto en la salud y la destrucción del medioambiente. El DDT es especialmente devastador porque nunca desaparece. El productor de DDT más grande de los Estados Unidos, Montrose Chemical Corporation, tenía su base en Torrance entre 1947 y 1982. Y durante esa época vertieron cientos de toneladas de residuos tóxicos al océano en la zona de Palos Verdes. Fueron a juicio y terminaron pagando un acuerdo, y el área fue designada como superfund site (zonas contaminadas de Estados Unidos que requieren una respuesta de limpieza a largo plazo por contener contaminantes nocivos) por la EPA en 2000.
Décadas más tarde, nos enteramos de que la misma corporación contaminadora vertió cerca de la isla Catalina el DOBLE de DDT que se había estimado previamente, junto a otros compuestos tóxicos además. Nadie está rindiendo cuentas por ese medio millón de barriles que se están filtrando a nuestro suelo marino hoy en día.
Las agencias gubernamentales necesitan redoblar sus esfuerzos de una forma clara. No nos podemos escurrir de estos desastres del pasado. Y tampoco podemos ignorar los retos que suponen estos compuestos tóxicos para el presente y el futuro.
Las pruebas demuestran que el DDT ha entrado en la cadena alimenticia, afectando la salud de miles de personas que comen alimentos del mar procedentes de la bahía, y también está llevando a especies, como las águilas calvas, hacia la extinción. La comunidad científica y los expertos en salud están preocupados por el impacto a largo plazo de la bioacumulación de DDT en el océano.
LA no puede esperar otra década para lidiar con los compuestos tóxicos en nuestro océano. La crisis climática está acelerando la subida del nivel del mar y las temperaturas, que ya de por sí tienen un impacto suficientemente negativo en el océano y nuestras comunidades.
Heal the Bay está lista para embarcarse en otra batalla para proteger nuestro océano, hacer responsables a los contaminadores, y a mantener al público, especialmente a los pescadores locales y usuarios recreativos del agua, informados sobre los riesgos para la salud del legado tóxico de DDT en LA. Su contribución posibilita nuestra misión de mantener el agua limpia para todos. Done a Heal the Bay.
As the year comes to a close, we feel energized for what’s ahead. 2021 will not be business as usual. There is too much at stake. Now is our chance to take bold action for present and future generations.
Climate change must be slowed or much will be lost. Heal the Bay pushes government leaders to protect water and biodiversity from the San Gabriel Mountains to the Santa Monica Bay.
Clean water and safe, accessible open space are fundamental for public health. Heal the Bay fights for strong permits that require green solutions to our local pollution problems.
The toxic legacy of plastic production and waste impacts our everyday life. Heal the Bay supports a ban on disposables that harm our neighborhoods and wildlife habitats.
A better world is possible when we empower our youth. Heal the Bay gives students the tools to advocate for their future by testifying at hearings and writing letters to elected officials.
We must recover environmental policy rollbacks. Heal the Bay has the expertise to regain ocean, river, and wetland protections, and solve today’s problems by upholding the Clean Water Act.
We are living in a critical decade for our planet. The hard work in front of us won’t happen by itself. Your donation to Heal the Bay supports our mission of making the coastal waters and watersheds in Southern California safe, healthy, and clean through science, education, community action, and advocacy.
Amidst all the challenges, you can trust that Heal the Bay is here for good. We will not stop until we succeed.
Luke Ginger, Water Quality Scientist at Heal the Bay, recaps a tough summer for water quality monitoring at LA County’s freshwater recreation areas, and outlines the urgent need for equitable, climate-resilient communities in the face of a health pandemic, extreme heat, unprecedented wildfires, and beyond.
Heal the Bay concludes another summer of freshwater sampling and monitoring with the River Report Card. Over the course of the summer of 2020, we provided inland water-goers with water quality grades for 27 freshwater recreation sites across Los Angeles County, California. This included 5 sites in Malibu Creek State Park and the LA River, where Heal the Bay staff collected water quality samples. We updated grades on a weekly basis and posted them online to be viewed by the public.
Summer 2020 was filled with many challenges that impacted our program. Due to COVID-19, Heal the Bay was unable to hire local college students to monitor water quality at recreation sites and storm drains like in previousyears. Instead, Heal the Bay’s permanent staff carried out water sampling. This was a major blow to our program because one of our main goals has always been to provide knowledge, skills, and career training to emerging professionals. Additionally, without a full crew, we sampled fewer recreation sites and storm drains, leaving the public with less information on how to stay safe.
We also had to take extra precautions while sampling – wearing masks at all times, driving in separate vehicles, and sporting extra protective gear (face shields and extra-long gloves) to reduce exposure to potentially contaminated water. These were necessary precautions because the research on the risk of contracting COVID-19 from recreational waters is still ongoing.
Photo by Alice Dison
There were also major changes in accessibility and use this summer at the sites Heal the Bay monitored. Malibu Creek State Park was open all summer, but the swimming holes (Rock Pool and Las Virgenes Creek) remained closed due to concerns over the ability to maintain proper physical distancing. However, this closure was not clearly enforced as we saw many swimmers throughout the summer. The official LA River recreation zones were open from Memorial Day until the end of September, but kayaking was not allowed due to safety concerns around COVID-19.
Monitoring efforts by LA Sanitation, Council for Watershed Health, and San Gabriel Regional Watershed Monitoring Program were impacted this summer as well. There were weeks where certain recreation sites in the Upper LA River Watershed and San Gabriel River Watershed were not monitored due to park closures or overcrowding concerns. According to LA Sanitation officials, Hermit Falls was not monitored this summer because it is a particularly crowded area that posed a health risk to the water quality monitors. Worker safety is incredibly important, as is the health of all Angelenos and visitors. Unfortunately, these tough decisions resulted in critical water quality information not being available at a very popular location all summer. LA Sanitation instead sampled the Vogel Flats picnic area, which is a new addition to the River Report Card. Toward the end of the summer, monitoring in the San Gabriel River Watershed and some of the Upper LA River Watershed was cut short due to the Bobcat Fire and the subsequent closure of Angeles National Forest.
This summer, the pandemic, a record setting wildfire season, and extreme heat culminated into one even larger public health crisis. The pandemic forced people to stay local and opt for close-by areas to take a swim. Because of this, as well as the reduced risk of contracting COVID-19 outdoors, people flocked in unusually high numbers to ocean beaches and freshwater recreation sites to stay active and cool. Unfortunately, if outdoor crowds become too big and dense, there is an increased risk of COVID-19 spread. The fact that so many people sought respite outside made clear the importance of open space for physical and mental health. But, the benefits of open space are not equally experienced by all. Black and Latinx communities have been systemically denied access to parks and nature, and there is a lot of work to do to provide justice for these communities. LA City and County must work hard to meet their target of 65% of Angelenos living within half a mile of a park or open space by 2025 (and 75% by 2035).
Photo by Alice Dison
The summer’s extreme heat waves coincided with the largest wildfires in California’s history, which created harmful air quality across the entire west coast. Many people endured hazardous outdoor air quality in order to cool off at rivers, streams, and beaches. Tragically, exposure to wildfire-induced poor air quality exacerbates the harmful health effects of COVID-19. So for low-income households without air conditioning, it was impossible to escape harm; people were either subject to extreme heat at home or subject to harmful air quality outside. We must acknowledge that in the United States, the communities facing the brunt of climate change impacts like extreme heat and wildfire are disproportionately Indigenous, Black, Hispanic, and Asian people.
Summer 2020 was a tough time for many, and it underscores the need for immediate and equitable action to address the climate crisis and environmental justice.
Looking forward, Heal the Bay will continue to advocate for water quality improvements across LA County, so everyone is protected from waterborne illness. And, we will continue to push for nature-based policies that stem the impacts of climate change and make our communities climate resilient.
Summer 2020 Results
Here are the water quality results from the sites Heal the Bay monitored during summer 2020.
Malibu Creek State Park
Rock Pool – did slightly better than last year
64% Green
35% Yellow
0% Red
Las Virgenes Creek – worse than last year
0% Green
93% Yellow
7% Red
Los Angeles River
Sepulveda Basin at Burbank Ave. – slightly better than last year
Heal the Bay’s Communications team sat down with Shelley Luce, Heal the Bay CEO and discussed her reaction to the in-depth story in the Los Angeles Times uncovering DDT dumping near Catalina that happened more than three decades ago.
I am shocked. We know about the superfund site off of Palos Verdes. We worked on the scientific and legal investigations in the 1980s and 1990s. We supported U.S. and state agencies in their lawsuit againstMontrose Chemical Corporation and three other companies, which was finally settled in 2001. Heal the Bay helped create the Angler Outreach Program to inform local subsistence anglers about the toxic waste that contaminates the fish they are catching to feed their families.
But these thousands of barrels of DDT dumped near Catalina were not part of the discussion.
It took years to negotiate the cleanup requirements for the Palos Verdes site. It’s just unfathomable the Environmental Protection Agency (EPA), Department of Justice (DOJ), and the State Water Board all knew about the additional contamination and did not make that part of the cleanup and mitigation requirements.
The impacts of half a million barrels of leaking DDT are far-reaching.
DDT is an especially devastating chemical because it never goes away. It gets into ocean animals and concentrates as it moves up the food chain. It harms untold numbers of fish, marine mammals, and birds, as well as people in especially vulnerable communities – people fishing to feed their families.
And in this time of climate change, this DDT dumped in the waters off Catalina is yet another blow to our ocean. Oceans are already stressedfrom warming and acidification, as well as overfishing and pollution from products like plastics, that never biodegrade or leave the environment.
How can we hold polluters accountable?
It’s so hard. Sometimes as nonprofits we have to fight unethical corporations and our own governments. Today we’re talking about DDT from Montrose Chemical Corporation. Last month we saw Exide Technologies, Inc.was allowed to walk away from the toxic lead and arsenic mess they created for three decades near 110,000+ residents in East LA, Boyle Heights, Commerce, Bell Gardens, Vernon, Cudahy, Maywood, Bell, and Huntington. 1 Support East Yard Communities for Environmental Justice in the fight to hold Exide accountable.
Corporations can leave. Government officials can leave. But our communities stay.
This DDT was dumped decades ago and a settlement for a portion of the pollution was already reached. Now we will fight again to hold these polluters accountable.We will start by asking the EPA, DOJ, Coastal Commission, and the State Water Board what jurisdiction they have to bring further claims against the parties responsible for the DDT dumping, and by collaborating with agencies who show they want to fix this problem. We demand solutions and will take action to reach them.
What more needs to be done to protect communities and habitats?
In addition to legal action, here are three things we must do:
We need a lot more education for people who rely on fish they catch to feed their families. Heal the Bay’s Angler Outreach Program is the model: we reach the most vulnerable people, in their own languages, and in places where they feel comfortable receiving this information.
We need more frequent and extensive monitoring of sediment and fish, to track contamination that can harm animals and the people who eat them. Every five years is not enough; we need detailed assessments to understand what is happening to the DDT that is out there.
We must find a way to clean up the DDT and PCBs in our ocean. We know the pilot project to cap the Palos Verdes site was not a success, but that does not mean we walk away. The EPA, NOAA, and other agencies must convene the experts who can come up with the next step and the next, until we find a way to deal with this toxic legacy.
Tell us what you think should be done. Contact Us.
For the sixth straight summer, Heal the Bay is posting daily water quality predictions for California Beaches on our Beach Report Card with NowCast.
A day at the beach should not make anyone sick. That’s why health officials across the state sample water at the beach weekly during the summer. And when officials detect high levels of bacteria, they issue a public health advisory.
The good news: by measuring the amount of bacteria in the water and sharing information with the public in real time, we can help you decide when and where it’s safest to go to the beach. Plus, it raises awareness about ocean pollution and brings much-needed attention to solving systemic waste and runoff issues.
The bad news: weekly samples aren’t enough. Water quality can fluctuate drastically from day to day, with real implications for people’s health. Heal the Bay believes that we need daily samples in order to better protect public health. In 2015, we launched our NowCast program within the Beach Report Card. NowCast supplements the weekly grades provided by public health officials by bringing accurate daily predictions to the public.
NowCast is able to predict concentrations of bacteria in the water on a daily basis, filling in the time gap of weekly bacteria sampling. NowCast consists of computer models that examine correlations between environmental conditions (such as temperature and tide) and historical bacteria concentrations. Our models then predict how much bacteria could be present in the water given the current local conditions at the beach.
NowCast predictions appear on the Beach Report Card with the symbols seen below. A Blue “W+” symbol indicates that there is a low risk of illness by coming in contact with the water, and a Red “W-” symbol indicates that there is a high risk of illness by coming in contact with the water.
Good Water Quality
Poor Water Quality
Head to beachreportcard.org to find daily predictions for over 25 beaches across California. Or download the free app on your iOS or Android device to get daily predictions on-the-go.
List of Beaches With Daily NowCast Water Quality Predictions
Ocean Beach (Balboa St.), San Francisco
Ocean Beach (Lincoln Way), San Francisco
Candlestick Point (Windsurfer Circle), San Francisco – NEW
Main Beach (Boardwalk), Santa Cruz County
Leo Carrillo, Los Angeles County – NEW
Will Rogers (Temescal Canyon), Los Angeles County
Will Rogers (Santa Monica Canyon), Los Angeles County
Santa Monica (Pico Ave.), Los Angeles County – NEW
Venice Beach Pier, Los Angeles County
Dockweiler/Toes Beach, Los Angeles County
El Porto, Los Angeles County – NEW
Manhattan Beach (28th St.), Los Angeles County
Hermosa Beach Pier, Los Angeles County – NEW
Redondo Breakwater, Los Angeles County
Redondo Beach Pier, Los Angeles County
Torrance Beach (Avenue I), Los Angeles County – NEW
Long Beach (72nd Place), Los Angeles County
Seal Beach (1st), Orange County – NEW
Seal Beach Pier, Orange County
Huntington Beach (Brookhurst St.), Orange County
Newport Beach (52nd), Orange County – NEW
Newport Beach (38th), Orange County
Aliso Creek Outlet, Orange County – NEW
Monarch Beach (Salt Creek Outlet), Orange County – NEW
Doheny State Beach, Orange County
San Clemente Pier (Lifeguard Tower), Orange County
Don’t see your beach on the map? We’re working on it! Predicting water quality is complex and we want to make sure we get it right. This means we need access to a myriad of data sources in order to make accurate predictions, and when data are not readily available, we can’t make the prediction.
If you’re looking to help monitor and improve the water quality at your favorite beach spots, here’s a few things you can do:
Advocate at town halls and city council meetings for increased funding toward ocean and environmental data observation, collection, standardization, and analysis programs.
Support Heal the Bay’s staff scientists efforts to expand monitoring programs and directly fund our work.
Stay informed about your local water quality and reach out to your representatives in California demanding improvements be made to protect public health and our natural environment.
If you can’t find daily NowCast predictions in your area, you can still see the latest water quality grades issued to over 500 beaches on the Beach Report Card Website. In the meantime, we are working to improve and expand the NowCast system so check back frequently to see if your favorite beach has water quality predictions.
Heal the Bay’s MPA Watch and Outreach Associate, Forest Leigh Curtis, breaks down the science behind pollution bioaccumulation in marine ecosystems, and how local anglers can safely consume fish.
The first time that I was told that the skin of fish caught near Los Angeles could be toxic to eat, the scientist in me was intrigued. Because it is said that fish’s skin can become a “reservoir for toxins,” I wondered if that were additionally true for human skin and I wanted to know what biological mechanisms allowed fish skin to perform this weird function. Perhaps toxins in the water absorb and accumulate in the fish skin?Let’s dive in and investigate.
The toxins in question here are various molecules known as persistent organic pollutants (POPs),which include the chemicals(DDT) and(PCBs). DDT is an industrial pesticide, and is no longer allowed in the US. PCBs can be found in today’s electrical equipment, but used to be very common and found in insulation, coolants, adhesives, ink, pesticides, and other products.POPs are known for their long-term resistance to decomposition, also known as persistence, as well as their organic nature that allows them to accumulate in the bodies of plants and animals.
There are many well-documented health and cultural benefits for eating fish, andPOPs do not prevent locally–caught fish from being beneficial, but their presence means that local anglers need to be mindful with the types of fish they eat and how they prepare them.Los Angeles is home to many subsistence anglers who rely on fishing for their main source of protein, and these communities are the most vulnerable to POPs.
It is unfair to ask anglers to change their behavior to protect themselves from pollution that they had no part in creating, and this is a direct example of an environmental justice issue.Where pollution goes is a calculated decision corporations and lawmakers make, and those decision-makers are fully aware of the impacts of those decisions. While POPs are a global concern, it is clear that the majority of public health impacts from this pollution, including cancer and reproductive disorders, are disproportionately experienced byfrontline communities, which are comprised largely ofBIPOC and people of lower socio-economic status.
So, how did these pollutants get in the environment in the first place?
POPs are a result of local contamination of LA’s sediment, soil, and groundwater. The largest example in LA County was caused by the Montrose Chemical Corporation,near Torrance. From the 1940s to the 1970s, this factory manufactured DDT and disposed of its waste, including DDT and PCBs, into the sewer system for 28 years, which at the time, released directly into the ocean without treatment. Hundreds of tons of DDTand PCBs were released into the ocean off the Palos Verdes Peninsula. While the manufacturing and untreated disposal of DDT has been banned in the United States, the molecule itself still persists in our local water and seafood.
Now, back to the question about fish skin. POPs are a particular threat in fish because marine and freshwater ecosystems are significant reservoirs for persistent pollutants. POPs are brought to aquatic locations by runoff, wind, or other means, and they stay in those ecosystems sequestered in organic sediments. These sediments are sometimes known as “sinks” because they can harbor POPs for hundreds of years.
These POPsare brought into the food chain by bottom feeding fish. Pollutants accumulate up the food chain, concentrating to levels that can be thousands of times higher than in the water around them, otherwise known as bioaccumulation. In addition, plastic pollution is widespread, and further exacerbates the issue. If microplastics are present in the water, POPs adhere to the plastic, concentrate further, and lead to the risk of even higherconcentrations of POPs entering the food chain.
Fish mainly absorb POPs from sediment. Bottom feeding fish stir up sediment to find food, absorbing POPsthrough their food and digestive tracts as well as their gills. Once inside the body,POPs dissolve into the fish’s fat for long-term storage.Normal fat storesin fish (and in humans) arelocated in the liver and the subcutaneous fat, which isthe layer of fat directly under the skin.That said, it’s not technically the skin of the fish that stores the pollutants, but the layer of fat just below the skin. When eating potentially contaminated fish, removing the fish skin also removes this layer of fat where the POPs are stored. And that’s why it isrecommended to skin certain types of fish caught in LA before eating.
How does this relate to Heal the Bay?
Heal the Bay’s Angler Outreach Program educates pier and shore anglers in Los Angeles and Orange County about the risks of consuming fish contaminated with DDT and PCBs. Created in 2003, the program is a component of the Fish Contamination Education Collaboration (FCEC) and managed by the US Environmental Protection Agency (EPA) as part of a far-reaching public education and outreach program.
What can we do about this pollution?
Los Angeles is taking measures to reduce pollution. It’s nearly impossible to remove POPs from our environment and wildlife, so the goal is to stop any more from entering.The next storm drain permit, also known as themunicipal sperate storm sewer system (MS4)permit,could be strong enough to enforce and reduce local pollutionvia the regulation of industrial discharge of wastewater into storm drains. Arecent supreme court decisionreinforcedMS4 permit regulatory standards.
Individually, the best first step is to educate yourself on which fish are safe to catch and eat in Los Angeles and how to prepare them safely.To advoate for clean water, you can contact your local water board and share your support for a simple, transparent, measurable, and enforceable MS4 permit that reduces the amount of new pollutants that enter our environment. Read our recent blog on the MS4 permit to learn more and sign up to stay updated on MS4 calls to action.
La primera vez que me dijeron que la piel de ciertos peces capturados cerca de Los Ángeles era tóxica para comer, me intrigó. Nunca había escuchado que la piel humana desempeñara un papel de “depósito de toxinas”, y me preguntaba qué propiedades especiales tenía la piel del pescado que le permitían albergar estas toxinas. Mi primer pensamiento fue que quizás las toxinas en el agua absorbidas a traves de la piel se acumulan allí. Al investigar más sobre el tema, esa no fue la respuesta que encontré.
Las toxinas en cuestión aquí son varias moléculas conocidas como contaminantes orgánicos persistentes (COP), que incluyen los químicos (DDT) y (PCB). Los COP son conocidos por su resistencia a la descomposición a largo plazo, también conocida como persistencia, así como por su naturaleza orgánica que les permite acumularse en los cuerpos de plantas y animales.
Hay muchos beneficios culturales y de salud bien documentados para comer pescado y los COP no impiden que los peces capturados localmente sean beneficiosos, pero su presencia significa que los pescadores deben tener en cuenta los tipos de pescado que comen y los métodos de preparación.
Los Ángeles es el hogar de muchos pescadores de subsistencia que dependen de la pesca como fuente principal de proteínas, y estas poblaciones son las más vulnerables a los COP. Estas preocupaciones con las fuentes locales de alimentos capturados en el medio silvestre provienen de la contaminación local de los sedimentos, suelos y aguas subterráneas de Los Ángeles.
El mayor ejemplo de contaminación por COP en el condado de Los Ángeles fue causado por la compañía Montrose Chemical cerca de Torrance. Esta fábrica elaboró DDT y eliminó sus desechos, incluidos DDT y PCB, en el sistema de alcantarillado durante 28 años, que en ese momento se liberaron directamente al océano sin tratamiento. Más de cien toneladas de DDT y once toneladas de PCB fueron liberadas en el océano frente a la península de Palos Verdes. La fabricación yuso doméstico del DDT se prohibieron en los Estados Unidos en 1972, sin embargo, la molécula misma persiste en nuestra area y en los mariscos hasta el día de hoy.
El Programa Educacional Pesquero (AOP, por sus siglas en inglés) de Heal the Bay educa a los pescadores de muelles y costa en el Condado de Los Ángeles y Condado de Orange, sobre los riesgos de consumir pescados contaminados con DDT y PCB. Creado en el 2003, AOP es un componente del Programa Educacional sobre la Contaminación de Peces (FCEC, por sus siglas en inés) y administrado por la Agencia de Protección Ambiental de los Estados Unidos (EPA, por sus siglas en inglés) como parte de un programa de educación pública y divulgación.
Realmente no es justo pedirles a los pescadores o cualquier persona que cambien su comportamiento de esta manera, pero muy pocos aspectos de la contaminación son justas. Si bien los COP son una preocupación mundial, está claro que la mayoría de los impactos de esta contaminación en la salud pública, incluidos el cáncer y los trastornos reproductivos, son desproporcionadamente experimentados por las comunidades de primera línea, que son comunidades compuestas principalmente por personas de color y/o de estatus socioeconómico más bajo.
Ahora, volviendo a la pregunta sobre la piel de pescado. Los COP son una amenaza particular en los peces porque los ecosistemas marinos y los de agua dulce son reservorios importantes de contaminantes persistentes. Los COP son arrastrados a cuerpos acuáticos por escorrentía, viento u otros medios y permanecen en esos ecosistemas secuestrados en los sedimentos orgánicos. Estos sedimentos a veces se conocen como “sumideros” porque pueden albergar COP durante cientos de años, excepto cuando son introducidos en la cadena alimenticia por los peces que se alimentan de los fondos.
Al subir por la cadena alimenticia, estos productos químicos orgánicos se concentran a niveles que pueden ser mucho más altos que el que se encuentra en el agua (también conocida como bioacumulación). Si hay contaminación microplástica en el agua, los COP se adherirán al plástico, se concentrarán más allá y generarán riesgos de concentraciones mayores de COP que ingresen a la cadena alimenticia.
Los peces absorben principalmente los COP de los sedimentos a través de sus vías digestivas y branquias, y solo en pequeña medida a través de su piel. Una vez dentro del cuerpo, los COP son rápidamente “atrapados” por las grasas, donde se disuelven fácilmente para su almacenamiento a largo plazo. Las reservas normales de grasa en los peces (y en los humanos) se encuentran en el hígado y la grasa subcutánea, que es la capa de grasa directamente debajo de la piel y que desempeña un papel en la regulación de la temperatura. Cuando la grasa se descompone debido al hambre u otros factores, los COP se liberan en el torrente sanguíneo y causan daño.
Dicho esto, no es técnicamente la piel del pez lo que almacena los contaminantes, sino la capa subcutánea de grasa justo debajo de la piel. Al quitar la piel del pescado, se elimina esta capa de grasa donde se almacenan los COP. Curiosamente, estas moléculas se comportan y se almacenan de manera similar una vez que ingresan al cuerpo humano a través de su tracto digestivo.
En caso de que esta información te haga sentir mal, Los Ángeles está tomando medidas para reducir la contaminación. Es casi imposible eliminar los COP de nuestro medio ambiente y vida silvestre, por lo que el objetivo es evitar que ingresen más. Existe la esperanza de que el próximo permiso de drenaje pluvial, también conocido como el permiso municipal de alcantarillado pluvial (MS4, por sus siglas en inglés), sea lo suficientemente fuerte y ejecutable como para reducir la contaminación local mediante la regulación de la descarga industrial de aguas residuales en los desagües pluviales. Afortunadamente, una reciente decisión de la Corte Suprema tomada en abril de 2020 (19) reforzó los estándares regulatorios de los permisos MS4 al decir que aplican a las aguas residuales vertidas en las aguas subterráneas, así como a los desagües pluviales.