Mortality Of Silkworms Due To Air Pollution:
Environmental Indicators Induced By
Ecological Stress
Author(s)
E. Kamilova & B. Tsarev
Abstract
The present investigation is the first attempt in determining stress-induced
changes in a soil-plant-insect ecosystem in an aluminum works zone to create a
mathematical model satisfactorily describing the process of silkworm destruction
due to the harmful emissions of an aluminum works and to develop an algorithm
for rating the ecological risk and measures of its prevention. The major objective
of this research was to create scientifically based recommendations for predicting
the level of damage to the surrounding ecosystems by the aluminum works and
to take adequate measures to protect the Great Silk Road. The investigations
have been conducted by the evaluation of toxic metal accumulation in the
ecosystem components with the distance limit of the wind rose exposure.
Concentrations of manganese, iron, cobalt, zinc, cadmium, chromium, rubidium,
selenium, scandium antimony, strontium, lithium, lead, mercury, silver,
aluminum, beryllium, molybdenum, nickel, tin and copper were detected by the
atomic absorption spectrophotometry method. The fluoride content was
determined by the alizarinechelatometry photometry method. The theoretical
basis of the algorithm was the theory of the survival of organisms under
conditions of stress based on Strehler-Mildvan’s model. The data were processed
by the ANOVA computer statistic tests. The real ecological process was
successfully described by a forecast made on the basis of the obtained
mathematical model. As a result, we have obtained the findings regarding the
accumulation of zinc, nickel, mercury, antimony, etc. in the soils, silkworm
excrements and the cocoons near the works. We have also obtained the threshold
concentrations of the above mentioned elements in the ecosystem components
leading to mortality of the silkworms and cocoons.
Keywords: ecosystems modelling, silkworms, ecological risks, aluminum works.
Keywords
ecosystems modelling, silkworms, ecological risks, aluminum works.
Related Book
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