Today, with the development of agriculture, industry and the expansion of these communities, which has resulted in the spread of Trace Metals in the environment is increasing. Such as the use of fertilizers and pesticides, which are a mixture of metals. Wastewater from industrial sources in the community. The metal contamination It causes the metal amounts are spreading into the water and sludge metal, they last longer and do not decompose in nature, it is likely to accumulate in living organisms, and convey the concern. food chain and to convey to consumers the last man.
การแปล กรุณารอสักครู่..