Seasonal
Investigation of Heavy Metals in Marine Fishes Captured From the Bay of Bengal
and the Implications for Human Health Risk Assessment
Narottam Saha, MZI Mollah, MF Alam, M. Safiur Rahman
ScienceDirect
December 2016
http://www.sciencedirect.com/science/article/pii/S0956713516302742The bio-magnification of heavy metals in fish was researched and proved that despite the approved THQ, exposure to arsenic has huge carcinogenic risks.
Narottam Saha, MZI Mollah, MF Alam, M. Safiur Rahman
ScienceDirect
December 2016
http://www.sciencedirect.com/science/article/pii/S0956713516302742The bio-magnification of heavy metals in fish was researched and proved that despite the approved THQ, exposure to arsenic has huge carcinogenic risks.
Learned: Fish will consumed other contaminated fish, leading to mercury poisoning in fish who are at the top of the food chain, such as shark, pike, and albacore.
ReplyDeleteQuestion: Is there anyway to "clean" bigger fish in order to remove carcinogens such as mercury? Or is the only solution to eat less big fish?
Waste from farm areas (pollutants in pesticides, etc) washes into the water and is ingested by fish.
ReplyDeleteAre there other pollutants besides metals that can be harmful to your health?
Arsenic causes cancers, brain, and heart issues. This arsenic comes comes from many different sources including geothermal waters and mines, but fish are also a source.
ReplyDeleteWhat does arsenic do on a chemical level to cause all of these horrible effects?
Learned: Scientists found that the wet summer season was the worst as far as the contamination of fish is concerned
ReplyDeleteQuestions: Were the fish in the Bay of Bengal still safe to consume, or were they too contaminated?
What I Learned: The accumulation of metals through bioaccumulation in fish can be dangerous, especially in the case of metals such as arsenic and mercury. These can lead to numerous dangerous diseases.
ReplyDeleteQuestion: What degree of metals need to be accumulated before they begin to have the adverse effects mentioned.
Summer and spring time are the worst for fish being exposed to chemical bi-products of the land. The rain floods into the bay that has chemical bi-products in it, which is exposed to the fish. Even though the fish are still safe to eat now, what level of carcinogenicity will make the fish unsafe to eat?
ReplyDeleteRainy seasons are the worst times of the year for bioaccumulation because the rain runs waste into the oceans where the fish can get contaminated.
ReplyDeleteWhich areas of the world are the most dangerous areas for bioacculmulation in fish?
Similar to Ellen's topic, the bio-accumulation that occurs from big fish eating small fish builds up metals that drift off into the water through rain from factories. Most show to be non-harmful but a few like arsenic can cause cancers.
ReplyDeleteQuestion: Are the fish affected by what they're carrying also?
A few questions:
ReplyDelete(1) Was salmon one of the fish types studied?
(2) What is the toxic level?
(3) what is the fish contaminant level?