tailieunhanh - Introduction to Environmental Science 12:008/159:008 Spring 2002

Ecologically, Ennore Creek is the most strategic place where many industries started mushrooming in and around the creek in the late 1970s led to meristamatic growth affecting the fishing community (Arunagiri et al., 1998). The environmental degradation of the Ennore Creek is structurally different from the problem of pollution of the metropolitan city of Chennai. This narrow creek is one among the most polluted creeks along the Eastern Coast, which is not only receiving worldwide attention, but also one of the areas demanding intensive research. The ecologically sensitive Ennore is surrounded by the water body of Pulicat Lake. | Introduction to Environmental Science 12 008 159 008 Spring 2002 Ohio 1950 s-1970 s Organic flammable compounds were commonly disposed in rivers sewer systems . 1960 common children pastime was to set small fires on the water. 1968 Cuyahoga River flowing through Cleveland set on fire destroying seven bridges I Many areas of the Great Lakes rivers channels bays heavily A polluted as the Cuyahoga. I 16. Water Pollution 1 Introduction to Environmental Science 12 008 159 008 Spring 2002 LOVE CANAL Families 600 demand State to relocate them at state expense . LOVE CANAL LOVE CANAL - Remediation Site lined with thick plastic and covered with impermeable clays. Barriers to prevent groundwater movement built around site. Contaminated soil and sediment removed and treated. Area considered clean. Homes back in the market. Area being monitored permanently. LOVE CANAL REMEDIAL CONSTRUCTION PLAN State and Federal government buy and destroy over 200 homes. By 1990 275 million spent in cleanup LOVE CANAL - What went wrong Life of container not known. Integrity of containers holding chemicals was compromised Bureaucracy lost track of site history. Construction practices increased infiltration accelerated problem. Love Canal - Benefits Raised citizen awareness about hazardous waste Triggered or aided critical environmental legislation superfund sites - CERCLA Comprehensive Environmental Response Compensation and Liability Act Brought attention to the numerous potential problem sites and need for sound and safe waste management practices. You can now buy a house there for a really cheap price 16. Water Pollution 2 Introduction to Environmental Science 12 008 159 008 Spring 2002 Water Pollution Pollutant - Any substance that does not belong in the natural system and disrupts the natural balance Water Pollution - Degradation of water quality in a manner that disrupts prevents its intended or original use. Surface Water Groundwater HAZARDOUS WASTE 1976 Resource Conservation and .

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