Aquatic environmetal toxicology Assignment Example | Topics and Well Written Essays - 500 words

Aquatic environmetal toxicology - Assignment Example It can be said that the method is effective as control of the environmental condition is made possible. Laboratory methods provide more sense of flexibility in terms of timing and it reduces workload and cost as well as seasonal and spatial variability (U.S. EPA 2000a). The use of laboratory test can enable one to formulate research question such as kinetics of acceptance and eradication, growth of the species or reproduction. This technique is also efficient as it is not subjected to assumptions like use of models. The approximate cost of this method is about $600; this is because of the tools that are required to perform this task. It is less expensive as it only requires a one day activity to gather the sediments and organisms. After collection of the samples for analysis the other part of activity is a one person activity. It is also possible to acquire some of the equipment below locally or improvising some such as dredgers or using your cell phone for GPS purposes, making the method cheaper. The clean water act has helped US navigable water to be protected from pollution by regulating the rate, amount and type of discharge of pollutants in the water bodies including the stream, rivers, coasts, wetlands and rivers. The act has significantly reduce the level of pollution from industrial and municipal For waters meant for swimming and fishing, the act was set to eliminate the disposal of untreated waste products with contaminated effluents from industrial and municipal plants. It required operators of such industries and businesses to apply for a permit to authorize their discharge into water bodies with a promise to reduce the discharge significantly over time. In 1998, the act was able to achieve 60 percentage of American clean waters thus they redirected their focus into eradicating nonpoint source water contaminants including agricultural runoff within chemicals or erosion of contaminated surfaces such as