New studies indicate that fish caught in Lake Ontario, which covers almost 19,000 square kilometers, are contaminated with high levels of mercury and polychlorinated biphenyls (PCBs), making them unsafe to eat. Mercury can cause brain damage and other health problems, while PCBs can contribute to neurological disorders, developmental problems and cancer. Contamination is caused by a variety of factors, including industrial pollution, agricultural runoff and municipal sewage. Advocates recommend that people should catch and release rather than consume the fish. They should also limit their consumption of fish from Lake Ontario and opt for safer alternatives.
Contamination Alert: Lake Ontario Fish Unsafe to Eat
Lake Ontario is one of the largest lakes in North America, covering almost 19,000 square kilometers. The lake provides drinking water, recreation opportunities, and fish for local communities. However, recent studies have shown that the fish in Lake Ontario are contaminated, making them unsafe to eat. In this article, we will discuss the contamination levels in Lake Ontario fish, the causes of contamination, the effects of eating contaminated fish, and what can be done to prevent further contamination.
Contamination Levels in Lake Ontario Fish
The Ministry of Environment, Conservation, and Parks in Ontario recently released a study that found high levels of mercury and polychlorinated biphenyls (PCBs) in the fish in Lake Ontario. These contaminants are of concern because they can accumulate in the fish tissue and pose health risks to people who consume them. The study found that Walleye and Chinook salmon had the highest levels of mercury and PCBs, making them the most contaminated fish.
Causes of Contamination
The contamination in Lake Ontario fish is a result of several factors, including industrial pollution, agricultural runoff, and municipal sewage. Industries such as chemical factories, oil refineries, and paper mills discharge their waste into the lake, which contains toxic substances such as PCBs and mercury. Agricultural runoff, which contains pesticides and fertilizers, also contributes to contamination. Municipal sewage, which contains human waste and household chemicals, is another source of contamination.
Effects of Eating Contaminated Fish
Consuming contaminated fish can have serious health implications for humans. PCBs have been linked to cancer, neurological disorders, and developmental problems. Mercury can cause brain damage, especially in fetuses and young children. Other health effects of mercury include kidney damage, respiratory problems, and vision and hearing impairment.
Prevention of Contamination
The Lake Ontario Waterkeeper, a non-profit organization, works to protect the health of the lake and its communities. They advocate for better industrial controls on pollution, better agricultural practices such as reducing the use of pesticides and fertilizers, and proper treatment of municipal sewage before it is discharged into the lake. The organization also encourages consumers to reduce their consumption of fish from Lake Ontario and opt for safer alternatives.
FAQs
Q: Can I still fish in Lake Ontario?
A: Yes, you can still fish in Lake Ontario for recreation purposes. However, it is strongly recommended that you catch and release, rather than consume the fish.
Q: Are all fish in Lake Ontario contaminated?
A: No, not all fish in Lake Ontario are contaminated. However, Walleye and Chinook salmon have the highest levels of mercury and PCBs, making them the most contaminated fish.
Q: What are some safe alternatives to Lake Ontario fish?
A: Some safe alternatives to Lake Ontario fish include trout, salmon, and Arctic char from other bodies of water. These fish are generally lower in contaminants.
Conclusion
Contamination of fish in Lake Ontario is a serious issue, and steps need to be taken to prevent further contamination. The Ministry of Environment, Conservation, and Parks in Ontario is working to address the sources of contamination, but individuals can also play a role in reducing contamination by adapting their habits. Reducing the consumption of fish from Lake Ontario and opting for safer alternatives is one such way. By taking collective actions, we can protect the health of the lake and its communities.
