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Contamination wildlife exposure assessment samples

Delta aminolevulinic-acid dehydratase (ALAD) is perhaps the most widely studied heme-related enzyme that is altered by metal contamination. ALAD conjugates two aminolevulinic acid molecules critical to heme biosynthesis. The zinc-dependant enzyme is easily inhibited by lead substitution and has been extensively characterized as a sensitive indicator of lead exposure. Blood is the ideal matrix for assessing ALAD activity in wildlife, and sampling is easy and non-lethal. Decreased ALAD activity has been correlated to lead accumulation in a wide variety of birds such as waterfowl, game birds, raptors, and passerines (28, 42, 53, 54, 90-92). [Pg.330]

See other pages where Contamination wildlife exposure assessment samples is mentioned: [Pg.40]    [Pg.123]    [Pg.1318]    [Pg.1318]    [Pg.548]    [Pg.531]    [Pg.518]    [Pg.485]    [Pg.251]    [Pg.642]    [Pg.15]   
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Contaminant assessment

Contamination assessment

Exposure assessing

Sample assessment

Sample contamination

Sampling contamination

Wildlife

Wildlife exposures

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