The Environmental Protection Agency has allowed millions of tons of pollutants to be pumped into the air because it failed to enforce a 1970 ban on tall smokestacks at power plants, environmentalists charged. The National Clean Air Coalition complained that tall stacks have been a "fundamental pollution control issue" for nearly 15 years. A utility industry spokesman called the coalition's claims "blatantly false." The environmentalists cited findings by the Natural Resources Defense Council that 212 power plant units opened since 1970 use tall stacks.
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