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Atmospheric pollutant concentrations expressed as mass per unit volume of atmospheric air (e.g., mg/m 3, μg/m 3, etc.) at sea level will decrease with increasing altitude because the atmospheric pressure decreases with increasing altitude. The change of atmospheric pressure with altitude can be obtained from this equation: [2]
Air pollutant concentrations expressed as mass per unit volume of atmospheric air (e.g., mg/m 3, μg/m 3, etc.) at sea level will decrease with increasing altitude. The concentration decrease is directly proportional to the pressure decrease with increasing altitude.
The Wobbe index is expressed in MJ/Nm³ (where 'Nm³' indicates'm³ in Normal conditions), or sometimes in BTU/scf.In the case of natural gas (molar mass 17 g/mol), the typical heating value is around 39 MJ/Nm³ (1,050 BTU/scf) and the specific gravity is approximately 0.59, giving a typical Wobbe index of 51 MJ/Nm³ (1,367 BTU/scf).
If you’re stuck on today’s Wordle answer, we’re here to help—but beware of spoilers for Wordle 1308 ahead. Let's start with a few hints.
Melania Trump directly commented for the first time about whether she will be joining President-elect Donald Trump in the White House full-time during his second term.. In an interview with Fox ...
This Wikipedia page provides a list of units of energy used in the template for converting measurements.
President-elect Donald Trump's chief of staff Susie Wiles sent a message Sunday ordering nominees to refrain from any posting on social media as Senate confirmation hearings are scheduled to start ...
Learn how to download and install or uninstall the Desktop Gold software and if your computer meets the system requirements.