seafood contamination Articles
A tiered assessment framework to evaluate human health risk of contaminated sediment
For sediment contaminated with bioaccumulative pollutants (e.g., PCBs and organochorine pesticides), human consumption of seafood that have bioaccumulated sediment‐derived contaminants is a well‐established exposure pathway. Historically, regulation and management of this bioaccumulation pathway has focused on site‐specific risk assessment. The state of California (USA) is supporting the ...
Harmful Algal Blooms: Red Tide vs. Blue-Green Algae
Once again, Florida residents are gearing up for the annual return of red tide, a harmful algal bloom that can wreak havoc on marine life and human health. Red tide occurs when specific types of algae proliferate in the water, creating a “bloom” that can taint the water and release dangerous toxins into the environment. But red tide is not the only toxic algal bloom we need to worry ...
By LG Sonic
Fact sheet: EPA mercury rules and power reliability
New rules from the U.S. Environmental Protection Agency to reduce mercury and other toxic air emissions will affect dozens of antiquated power plants currently operating without pollution controls. These rules have stirred debate in some circles as to whether retrofitting or retiring outdated plants will cause shortfalls in electricity capacity. How will EPA mercury rules influence the ...
Phycotoxins in the marine environment: control of marine organisms for contamination with algal toxins
On a global scale, the frequency and intensity of toxic algal blooms appear to be on the rise. There is also evidence of geographic spreading of toxic strains. Therefore, it is necessary to establish methods for the evaluation of possible hazards caused by the enrichment of algal toxins in the marine food chain. Different clinical types of algae-related poisoning have attracted scientific ...
Methylmercury, Fish Consumption, and the Precautionary Principle
This paper considers several broad issues in the context of probabilistic assessment of the benefits of curtailing mercury (Hg) emissions from U.S. coal fired power plants, based on information developed from recent literature and epidemiology studies of health effects of methylmercury. Exposure of the U.S. population is considered on the national scale, in large part because of recent ...
EPA mercury rules: Keeping the lights on while removing toxics from our air
Next week the U.S. Environmental Protection Agency is expected to finalize new rules to reduce mercury and other toxic air emissions that will affect dozens of antiquated power plants currently operating without pollution controls. These rules have stirred debate in some circles as to whether retrofitting or retiring outdated plants will cause shortfalls in electricity capacity. How will new EPA ...
Determination of Polycyclic Aromatic Hydrocarbons in Seafood by an Automated QuEChERS Solution
Abstract Polycyclic Aromatic Hydrocarbons (PAHs) are a large group of organic compounds found naturally in the environment. PAHs are monitored by the US Environmental Protection Agency due to their carcinogenic characteristics. In recent global events, PAHs have come to the attention for contamination in sea food samples due to the oil spills. In the oceanic environment, PAHs are bio-available ...
Bioaccumulation of petroleum hydrocarbons in arctic amphipods in the oil development area of the Alaskan Beaufort Sea
An objective of a multiyear monitoring program, sponsored by the US Department of the Interior, Bureau of Ocean Energy Management was to examine temporal and spatial changes in chemical and biological characteristics of the Arctic marine environment resulting from offshore oil exploration and development activities in the development area of the Alaskan Beaufort Sea. To determine if petroleum ...
Freshwater quality — SOER 2010 thematic assessment
Water is critical for life and is integral to virtually all economic activities, including food and industrial production. Not only is clean water a prerequisite for human health and well-being, it provides for aquatic habitats that support healthy freshwater ecosystems. A range of pollutants including nutrients, biocides, pathogenic micro-organisms, industrial and household chemicals, metals and ...
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