How are the \"unorganized emission factors and source strengths\" determined in environmental impact assessments?
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Dear experts, how are the \"unorganized emission factors and source strengths\" determined in environmental impact assessments? “What exactly does “unorganized emission” refer to?
It refers to the random emission of air pollutants without going through an exhaust stack. Emissions from low exhaust stacks are considered organized emissions, but under certain conditions they can also lead to the same consequences as unorganized emissions. Unless otherwise specified, a low exhaust stack generally refers to an exhaust stack that is less than 15 m tall.
Those upstairs have already explained unorganized emissions clearly. But the source strength is difficult to determine. Some are derived by back-calculation using atmospheric prediction models based on the unorganized emission concentrations at the plant boundary, while others are calculated through mass balance. It is rather troublesome to work with these, but there are also cases where direct calculations using models are employed, such as for dust generated in coal yards and roads.
Dear experts, how are the \"unorganized emission factors and source strengths\" determined in environmental impact assessments?
That’s right, so how is the amount calculated for those leaks?
If leaks are controlled, does that mean it’s no longer considered unorganized emissions?