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Effects of ammonia on periphytic communities.
1990
Niederlehner B.R. | Cairns J. Jr.
Trends in organochlorine and mercury levels in gannet eggs.
1990
Newton I. | Haas M.B. | Freestone P.
Levels of polychlorinated biphenyls, organochlorine pesticides, mercury, cadmium, copper, selenium, arsenic, and zinc in the harbour seal, Phoca vitulina, in Norwegian waters.
1990
Skaare J.U. | Markussen N.H. | Norheim G. | Haugen S. | Holt G.
Pollution
1990
Harrison, R. M. (Roy M)
Much has happened in the pollution field since 1982 when the first edition of this work was written. This edition includes new subject areas such as radioactive pollution and chemistry and pollution of the stratosphere.
Afficher plus [+] Moins [-]Water pollution
1990
Tripathi, A. K. (Anil Kumar) | Pandey, S. N. (Surendra Nath)
River pollution
1990
Haslam, S. M. (Sylvia Mary)
Chapters: 1) What is pollution?; 2) Pollution, ancient and modern; 3) Ecosystems and pollution; 4) The effect of pollution on plants; 5) Effect of pollution on animals; 6) When one thing is added to another; 7) Diagnostic methods; 8) Structural damage: physical damage not due to pollution; 9) Within-river pollution; 10) Domestic and industrial pollution; 11) Pollution from rural land use.
Afficher plus [+] Moins [-]Water pollution | Improved coordination needed to clean up the Great Lakes
1990
Water pollution | Greater EPA leadership needed to reduce nonpoint source pollution | Nonpoint source pollution
1990
Air pollution | Protecting parks and wilderness from nearby pollution sources
1990
Environmental pollution
1990
Nath, Pashupati | Nath, Siddha
