03.15.10 - March 15 th Detection and monitoring: action is...

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Unformatted text preview: March 15 th Detection and monitoring: action is primarily after the fact. Water managers need to be familiar with chemical analysis. Goal is to identify the source in order to cease/prevent exposure. 80 chemicals have defined standards and certified laboratory procedures (US EPA). MCLG: max containment level goal. MCL: max containment level (enforceable) – used as standard. Mass spectroscopy-based methods used to identify specific chemicals. Applied through direct observation of ground water, epidemiology of human/animal toxicity, bio-monitoring, biomarkers: protein or nucleic acid ‘signature’ reveals toxicity- fast and cheap. Need a variety of toxicity tests on different levels of biological organization to detect chemical pollution. 1. Microbiotest: exposure of a unicellular organism to a liquid/solid sample to measure a specific effect. It is likely that if a chemical is toxic at lower levels, it is likely to affect a specific effect....
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This note was uploaded on 08/10/2011 for the course PARA 515 taught by Professor Timothygeary during the Winter '10 term at McGill.

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03.15.10 - March 15 th Detection and monitoring: action is...

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