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Globe & city
Date Issued: 1970-10-28
Postage Value: 6 cents

Commemorative issue
Anti-pollution
Globe & city

Anti-pollution measures have been effective in reducing massive quantities of water and air pollutants affecting urban areas. The costs of pollution control generally increase rapidly as a greater percentage of residuals is removed from the waste stream. Damage from pollution goes down as a greater amount of contaminants is removed. Extensive treatment may result in more residuals and may involve a trade-off of one form of pollution for another.

Topic: Urban (27)  

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