The part of the following options that are not a long-term effect of mining in the Picher Mining District is the increased amounts of vegetation.
Picher Mining District is an area located in Ottawa, Northeast of Oklahoma. In this area, mining activities are being carried out and these activities can have long-term detrimental effects or complications to respiratory organs.
Miners are required to practices safety rules during mining activities and periodically go for check-ups to extract any harmful substances away from the body system.
Therefore, we can conclude that in an area where mining activities are being carried out, the effect of mining which is not a long-term effect is the increased amounts of vegetation.
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