BOB EDWARDS / SCIENCE PHOTO LIBRARY BOB EDWARDS / SCIENCE PHOTO LIBRARY
Water pollution monitoring. Scientist collects a sample of polluted water as it pours from a pipe into a shallow ditch. The water has been stained dark yellow by the presence of chemical effluent. This water contains poisonous organochloride chemicals, especially 2,6-dichlorobenzenamine and 2,4,5-trichlorobenzene. These two chemicals are used in the pharmaceutical industry. Photographed at Ankleshwar in Gujarat, India. In this major industrial area, wastes are often disposed of by dumping them in any convenient open space or watercourse.
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