Effect on environment

The detrimental effect on environment is minimized and the equipments and facilities used are adequate for optimum utilization in all stages. 

Bodaly RA, St. Louis VL, Paterson MJ, Fudge RJP, Hall BD, Rosenberg DM, Rudd JWM. 1997. Bioaccumulation of mercury in the aquatic food chain in newly flooded areas. In Sigel A, Sigel H, editors, Metal ions in biological systems, Vol. 34 Mercury and its effects on environment and biology. New York (NY) Marcel Dekker Inc., p. 259-287. 

The research strategies recommended by the USDA Research Planning Conference for EPA-related activities include studies ons (1) allelopathic effects on environment in terms of allelochemical persistence, activity and effectiveness, (2) ecological consequences due to alle-lochemicals, and (3) potential risks to human and animal health (37). In addition to these approaches, we should also pursue studies toward understanding the effect of ccrmercial allelochemicals, alone or in combination with other chemicals such as pesticides, on human health, safety and environment. 

F. Baldi, in Metal Ions in Biological Systems. 50. Mercury and Its Effects on Environment and Biology (Eds. A. Sigel, H. Sigel), Marcel Dekker, New York, 1997, p. 213. 

However, together with other chlorinated compounds like PCBs and CFCs, it possesses noxious effects on environment, particularly a high ozone potential depletion. It was, in fact, classified in the IV group among CFCs and so its use was banned, in developed countries, from 1996. 

Effects on environment and regulations related to health and safety. 

Selection of the right reagent for a reaction is made on the basis of efficiency, availability and its effect on environment. The selection of a particular reagent versus another reagent for the same transformation can effect the nature of by-products, percentage yield etc. (see Chapter 6 for details). 

Shale gas is natural gas stored in petroleum-rich shale rocks where petroleum is converted into natural gas subjected to high heat and pressure. Shale gas is becoming an important source of natural gas in the United States and in other countries. Major concerns are the cost, effect on environment, complexity, and safety issues of drilling technology, which require both vertical and horizontal drilling of lateral length of thousands of feet. 

---