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The Times of India
The Times of India
World
TOI World Desk

For decades, zinc smelters polluted Pennsylvania’s Blue Mountain; crews later used mushroom compost and aircraft seeding to help vegetation return

Pennsylvania Environment Pollution USGS

During the earlier parts of the twentieth century, Blue Mountain in eastern Pennsylvania provided a grim picture of the cost of heavy industry to the environment. Over many years, large zinc factories in Palmerton emitted vast amounts of metal-laden smoke into the surrounding area. The once-forested mountain gradually became barren, with little vegetation or wildlife habitat. The area became one of the worst examples of industrial pollution in the country.

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