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Primary environmental indicators 7 Wildlife
Land use and condition 54
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agricultural land American annual Average Average0 Bewl Water biotechnology British Columbia Canadian carbon Catemaco chemical consumption Contaminants declined developed Economic Environment Canada 1991c Environmental Indicators Environmental Problems environmental quality erosion federal fell Figure forest Fraser Institute freshwater global warming Grijalva Grijalva Rivers Guadalajara guidelines harvested hectares human health IMECA improvement industry Lake Huron landfills measures ment Mexico City million Monterrey municipal Natural Resources nitrogen Nitrogen Dioxide North Note nutrients objectives OECD oil spills Ontario overall oxygen ozone ozone levels Panuco PCBs percent between 1980 percent in Lake pesticides Phosphorus plants Primary Indicators production protected areas Quality of Selected recycling reduction Relative Severity rivers and canals Severity of Environmental shows solid waste Source species sulphur dioxide suspended particulates tion tonnes trends tween UKDETR United Kingdom United States Canada urban USEPA values VOCs water quality water-quality wetlands wildlife