atmospheric self-purification

例句：

1. 1.The weather forecast for tomorrow is predicting a sunny day at an atmospheric pressure of 250 millibars.
   明天的天气预报预测是一个阳光明媚的日子，气压为250毫巴。
2. 2. The scientist conducted experiments to study the effects of atmosphericpollution on human health.
   科学家进行实验研究大气污染对人类健康的影响。
3. 3. The atmospheric layer above the ocean is crucial for maintaining the balance of the marine ecosystem.
   海洋上方的大气层对于维持海洋生态系统的平衡至关重要。