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HOW HEALTHY ARE OUR WATERWAYS Water Quality …
www.longwood.eduHOW HEALTHY ARE OUR WATERWAYS? WATER QUALITY MONITORING 5/8 HUMAN ACTIVITIES AND WATER POLLUTION Human activities can modify water quality in two ways. First, water quality is changed when we add pollutants, including: • sediment from erosion;
PCBs, MINING, AND WATER POLLUTION - US EPA
www.epa.govcause water pollution that can affect the environment and the health of downstream fish, and wildlife, and human populations. PCBs are most likely to be in transformers, as shown in Figure 1,