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Books > Earth & environment > The environment > Pollution & threats to the environment
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New Microbiotests for Routine Toxicity Screening and Biomonitoring (Paperback, Softcover reprint of the original 1st ed. 2000)
Loot Price: R4,429
Discovery Miles 44 290
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New Microbiotests for Routine Toxicity Screening and Biomonitoring (Paperback, Softcover reprint of the original 1st ed. 2000)
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The determination of the hazards resulting from the accidental or
deli berate contamination of terrestrial and aquatic environments
is in most countries still lirnited to the detection and
quantification of the suspected pollutants by chemical analyses.
Such an approach is unfortunately hampered by the following
constraints : the costs as weil as the technical difficulties of
analyzing every individual chemical which may be present in the
sampies, and the difficulty of assessing the hazards and risks of
environmental contaminations from a set of chemical data. During
the last decades the scientific and regulatory community has
gradually realized that biological methodologies have to be taken
into consideration for an ecologically meaningful assessment of the
toxicological hazards of contaminants. Effect evaluations obtained
with biological techniques indeed integrate the impact of all the
contaminants to which living biota are exposed. Bioassays with
selected test species representative for the biological commumtles
of the environments under consideration, are now applied more or
less regularly to determine toxic and genotoxic effects. Taking
into account the species specific and chemical specific character
of toxicity to biota, the necessity of a "battery of tests"
approach with species of different trophic levels is currently also
generally accepted and implemented. It is dear that a balanced
partnership between chemical, biological, toxicological and
microbiological analyses is always the best strategy for generating
the broadest information base on environmental hazards.
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