Global distribution of PCBs and organochlorine pesticides in butter

Article Abstract:

Butter was used to test the global and regional scale distribution of persistent organic pollutants, compounds which are mobile in the environment. Concern about their ability to accumulate and condense in cool regions, long-range atmospheric transport and their potential toxicity has resulted in international restrictions and bans on the release or use of persistent organic pollutants, and butter can be easily tested and stored, and concentrations can provide the sought after data.

Butter, Creamery Butter Manufacturing, Creamery butter, Testing, Dairy industry, Dairy products industry, Illustration

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Behavior of sewage sludge-derived PAHs on pasture

Article Abstract:

This field experiment undertakes the investigation of the retention of PAHs after sludge was applied to pasture grass. The investigation not only covered compound-specific loss rates, but the impact of meteorological variables and sludge-pasture contact time on the weathering process as well. Studies found that there is a risk of persistent organic contaminants to be introduced to the grazing animal food chain if sewage sludge is applied to pastures, but the effect of sludge pasture contact on residual levels before rain weathering is still not clear.

Waste Management and Remediation Services, Hydrocarbon Pollutants NEC, Statistics, Environmental aspects, Pollution control industry, Hydrocarbon pollutants, Polycyclic aromatic hydrocarbons, Sludge, Pasture research

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Derivation and field testing of air-milk and feed-milk transfer factors for PCBs

Article Abstract:

Derivation and field testing were undertaken to obtain congener-specific air to milk and feed to milk transfer factors. Specifically, detailed field experimental data on the air to herbage transfer of PCBs was integrated with feed to milk transfers data to obtain transfer factors results. A direct correlationship was observed between levels of persistent PCB congeners in silage and milk output fluxes.

United States, Industrial Organic Chemicals, Polychlorinated Biphenyls, Cyclic Crude and Intermediate Manufacturing

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