与高层大气臭氧层不同的是，地面的臭氧是光化学烟雾的一个主要组成部分。

Ozone at ground level - not to be confused with the ozone layer in the upper atmosphere - is one of the major constituents of photochemical smog.

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目前，对PCP的主要处理方法是：生物方法、芬顿试剂法、光化学、电化学、臭氧处理、超声波及金属催化氧化等处理方法。

Currently, the main treatment of PCP includes: biological method, fenton reaction photochemical method, electrodeposition, ozone treatment, ultrasonic, metallocene catalysts.

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在各类环境影响类型中，光化学臭氧合成是两种方案的最主要影响类型。

Photochemical Ozone synthesis is the most important environmental impact category in both methods.

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