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emission factors

2 posts on emission factors.

AERMOD Emission Rates: Where the Numbers Come From

AERMOD takes an emission rate as an input and never calculates it. Where that number comes from, what AP-42 factors assume, and when it matters.

TEG Dehydrator Emissions: Why Glycol Pumps Are 90% of the Problem

A mechanistic model of TEG dehydrator emissions finds gas-assisted glycol pumps produce about 90% of uncontrolled methane, reframing control priorities.