Natural gas exploitation threatens regional water quality, urgent action needed.
The article discusses how natural gas extraction affects water quality in Deyang, Sichuan Basin. The researchers used a simple method called principal component analysis to analyze water quality data before and after gas exploitation. They found that pH and COD levels can represent most of the water quality changes. Various treatments like environmental standards and vegetation restoration were used to mitigate the impact of gas extraction on water quality. The study suggests improving environmental management and waste treatment technologies in the area to protect surface water quality.