Improved method for determining the stable-hydrogen isotopic composition (deltaD) of complex organic materials of environmental interest

Article Abstract:

Researchers from Environment Canada and the National Water Research Institute presented an improved method for determining stable hydrogen-isotope composition of complex organic substances using a high-temperature preparative equilibration technique.

Canada, Industrial Gas Manufacturing, Industrial gases, Hydrogen, Gases industry, Industrial gases industry, National Water Research Institute

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Hexochlorocyclohexane (HCH) isomers and chiral signatures of HCH in the arctic marine food web of the Northwater Polynya

Article Abstract:

Analysis of the food chain of the Northwater Polynya Arctic has shown the presence of concentrations of Hexachlorocyclohexane (HCH) isomers. While biotransformation of these isomers in birds, wish and water plants appears constant with previous findings, data shows the ringed seal has the greatest difficulty metabolizing this chemical. Charts, graphs and statistical data support the article's conclusions.

Pesticide and Other Agricultural Chemical Manufacturing, Arctic, Agricultural chemicals, not elsewhere classified, Lindane, Statistical Data Included, Environmental aspects, Chemical industry, Illustration, Pesticides industry, Arctic regions

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A stable-isotope approach to delineate geographical catchment areas of avian migration monitoring stations in North America

Article Abstract:

Study tries to delineate geographical catchment areas of birds that are sampled by migrating monitoring stations. The goals of the study is to link areas where birds are in decline and enhance the efforts of conservation.

United States, Animal specialties, not elsewhere classified, All Other Animal Production, Animal Specialties NEC, Birds, Bird migration, Aviaries, Animal specialties

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