The Comparative Effects of CS and Various Pollutants on Fresh Water Phytoplankton Colonies of 'Wolffia papulifera' Thompson
Abstract
Varying concentrations of nine potential pollutants were tested for effects in vitro against colonies of Wolffia papulifera. Death was observed in colonies of Wolffia exposed to 100 ppm or above of CS, DDT, Malathion, Diazinon, and indole acetic acid (IAA) and to 1000 ppm of Aldrin, Dieldrin, Sevin, and 2, 4-D. No effects were seen in xxxxxxx colonies exposed to 5 ppm or below of CS, DDT, and IAA; 1 ppm of Dieldrin, Diazinon, and Sevin; 0.1 ppm of Aldrin and Malathion; and 0.01 ppm of 2,4-D. Teratogenic effects were observed in Wolffia colonies exposed to Malathion at 1 ppm, of 2,4-D at 0.1 ppm and above, and Diazinon at 10 ppm. Responses of Wolffia colonies to all dose levels of pollutants tested, as well as pictorial evidence of teratogenicity, are included.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1971
- Accession Number
- AD0736336
Entities
People
- C. Donald Schott
- Elmer G. Worthley