Environmental Science

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Across
  1. 2. emissions that are released into the environment from many points, not just one
  2. 3. gradual accumulation of substances, such as pesticides or other chemicals, in an organism.
  3. 5. pollution from man made activities
  4. 7. when you get a greater effect by combining two or more organisms or components together than you would get by adding the effects of each.
  5. 10. the quality of being toxic or poisonous.
  6. 12. a substance capable of causing cancer in living tissue
  7. 13. a process or place that removes, stores or absorbs the pollutant
  8. 14. the dose of a substance that is sufficient to kill 50% percent of the specified test animal within a set period of time
  9. 16. the adverse health effects of repeated doses or exposure to the material over a relatively prolonged period
  10. 18. organic compounds that are resistant to environmental degradation through chemical, biological, and photolytic processes.
  11. 20. how much of a pollution a person is exposed to in a given amount of time
Down
  1. 1. emissions that are released from a single identifiable point, specified site or location
  2. 4. emissions of gases or vapors from pressurised equipment due to leaks and other unintended or irregular releases of gases, mostly from industrial activities
  3. 6. any air pollution emitted by motor vehicles, airplanes, locomotives, and other engines and equipment that can be moved from one location to another
  4. 8. adverse effects of a substance that result either from a single exposure or from multiple exposures in a short period of time
  5. 9. any concentration of a toxin, such as pesticides, in the tissues of tolerant organisms at successively higher levels in a food chain.
  6. 11. the point at which there is an abrupt change in an ecosystem quality, property or phenomenon, or where small changes in an environmental driver produce large responses in the ecosystem
  7. 15. the amount of chemical absorbed per unit of body weight
  8. 17. the dose of a substance that is sufficient to kill a percentage of the specified test animal within a set period of time
  9. 19. a colourless pungent toxic gas formed by burning sulphur in air