PBHL 2201 Lecture Notes - Lecture 27: Environmental Health, Asthma, Diesel Fuel
12 Apr 2016
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Document Summary
Traditional hazards have been brought under control, modern hazards appeared, caused by technological and industrial development. Humans are living longer because of improvements in nutrition, medical diagnosis and treatment, and the living environment. Environmental health hazards are beyond the control of the affected individual: Industrial pollution, poor services of drinking water and sanitation, poor housing and town planning, relaxed control over eating establishments and food industry, poor quality roads, and. Ecosystem- a system of dynamic, interdependent relationships among living organisms and their physical environment. An integrated approach that considers all ecosystem components (e. g. , human activities, habitats and species, and physical processes), while promoting conservation and sustainable use in an equitable way. Clean air, safe and sufficient water, adequate and safe food, safe and peaceful settlements, and stable global environment. When the amount of hazardous substances in the air exceeds the capacity of the environment to clear them by deposition, conversion, or dilution. Secondary- these form from substances in the air.
