toxic substances

Listing 1 - 10 from 90 for toxic substances

Glossary of Terms
... or short term exposure to a compound. Adsorption The condensation of gases, liquids, or dissolved substances on the surfaces of solids. Adverse Health Effect An effect that causes functional impairment, ... Alkaline; a compound with a pH above 7. Bioaccumulation The accumulation within living organisms of toxic substances occuring in the environment. Back to Top - C - Cancer A disease that tends to ...
extoxnet.orst.edu

EXTOXNET FAQs - Natural Toxins in Food
... Food Natural Toxins in Food While we usually think of toxic substances as coming from man-made sources, many occur naturally. For example, toxic mussel outbreaks in the ocean have claimed lives and caused illness because the mussels consumed contained an algal toxin. Fresh water is not without toxic substances, either. For ...
extoxnet.orst.edu

Extoxnet FAQs - Questions About Pesticide Exposure
... to last long enough to do their job -- control pests, then break down to non-toxic substances. However, pesticide persistence is highly variable, from a few hours to days, months or years ...
extoxnet.orst.edu

Colors and Smells in Drinking Water
... plumbing at high concentrations, and can tarnish silver rapidly. In large enough quantities, it is toxic to aquarium fish. As little as 0.5 PPM (parts per million) can be tasted ... Council. Toxicological Profile for Copper. U.S. Department of Health and Human Services. Agency for Toxic Substances and Disease Registry. December 1990. This page was prepared by S.L. Keyser, UCD EXTOXNET ...
extoxnet.orst.edu

EXTOXNET PIP - AMETRYN
... goldfish it is 14.1 mg/l (49, 50). Ametryn is highly toxic to crustaceans and moderately to highly toxic to mollusks (8). Effects on Other Animals (Nontarget species): Ametryn is only ... 450 micrograms/l in groundwater(54). Breakdown in Vegetation: Ametryn is broken down into non-toxic substances by tolerant plants and, to a lesser extent, by sensitive plants (50). PHYSICAL PROPERTIES AND ...
extoxnet.orst.edu

Withering and Scorching of Foliage
... to foliage tissue, with these often accumulating on leaf margins and scorching occurs. Many substances are toxic to plants and their modes of action differ. Atmospheric toxicity - Certain air ... leaf edges initially. This could be confused with damage caused by root failure or toxic substances. Vascular diseases - Plants or trees infected with vascular disease organisms such as Fusarium wilt, ...
plantpathology.tamu.edu

The Grass Roots
... to Toxics Northwest Coalition for Alternatives to Pesticides Pesticide Action Network North America Agency for Toxic Substances and Disease Registry Genetically Modified Organisms Food First ETC group nelsonfarm.net True Food Network ...
signsofdissent.com

Open Directory - Science: Social Sciences: Communication: Health Communication
... information through various media. Health Risk Communication Primer - Practical guide from the US Agency for Toxic Substances and Disease Registry to communicating health risks to the public in writing, through meetings, and ...
dmoz.org

Open Directory - Recreation: Pets: Pigs
... of a variety of feed brands, and litter box tips. Swine On-line - Guide to toxic substances, vaccinations, diseases and parasites. Listings of clubs and publications, judging guidelines and history. Tips on ...
dmoz.org

Open Directory - Science: Biology: Toxicology
... Health and Safety: Hazardous Substances (85) Health: Public Health and Safety: Disease Control and Prevention: Poisoning (11) Science: Chemistry: Clinical and Medicinal Chemistry (17) Science: Environment: Environmental Health: Toxic Substances (59) This category ...
dmoz.org