The issue of SO2 emission standards
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**What are the current SO2 emission standards? How much can the emissions from each of our respective organizations achieve?
There are many standards for sulfur dioxide levels at present; the property owner should clarify which industry is involved. If there are industry-specific standards, those should be followed; otherwise, the comprehensive emission standards shall apply.
I’m at an oil refinery that hasn’t started construction yet.
Then we should follow the standard mentioned above; it’s available on the website of the Ministry of Environmental Protection. As a tin smelting enterprise, we adhere to a relatively low standard of 400 mg/m3.
The emission standard applied in the cement industry is below 200 mg/Nm3, and with desulfurization equipment in use, it is easy to keep levels at 100 mg/Nm3.
The standard for the petrochemical industry is 100 mg/Nm3; it applies to new projects starting from July 1, 2015, and to existing plants starting from July 1, 2017.