Clear Lake

I first saw myself and let my legs do it for a while. This road looks much farther in front of me. The blue sky is full of fluffy white cotton clouds. The long lawn has itchy legs and is only covered with shorts. My boyfriend and I go to Clear Lake every year. Clearly attractive name, beautiful waters. The clear water of the glacier is cold and frozen, but it seems to be refreshing and refreshing always after climbing a two day hike.

Clear Lake, California was the first research site to demonstrate bioaccumulation of organochlorine (Hunt and Bischoff, 1960). Thousands of regular mosquitoes kept offending the residents of Clear Lake for several years during the summer months. The method of exterminating mosquitoes began to be studied as early as 1916. Insecticides are used to kill larvae and use local fish to consume them, neither technique has effect. In 1949, the lake administrator decided to use the newly developed organochlorine pesticide DDD (which is closely related to DDT).

The first large DDD processing of Clear Lake was completed in 1949. When those numbers began to increase again, it was not until 1951 that a very small g was observed. In 1954, DDD was reapplied to the lake, this dose increased by 50%. Two months after the second spraying, 100 West Gray (birds eating fish) were found dead in the lake without symptoms of infection. Two months later, 75 grays were found dead on the banks of Clear Lake Chemical analysis of tissues from these birds showed very high DDD. The DDD concentration of fish and birds in Clear Lake is 80,000 times higher than underwater (Figure 11.2) By 1960, the number of Grebe populations with 1000 pairs disappeared before spreading in 1949.