Basics

The engineering approach of Emissions Control / Emissions Control System but applied to Odor Emissions
Mainly relevant in Waste Management and Wastewater Treatment
Some agricultural, bio-petrochemical, and culinary industries can also apply
Regulation is largely lacking in this sector so effort is moreso done for “best practices” / maintaining a good relationship with locals rather than for solely compliance reasons
- Going the approach of Regulatory Compliance is a Floor, not a Ceiling does allow for futureproofing of the design/overall plant however, rather than expensive modifications down the road

Planning

What process/feedstocks are you dealing with?
Similar to Smokestack design, modeling can also be done on how far you are away from tbe public and how things would diffuse/dilute by then
- GRANTED from an Ecological Justice perspective, saying a nasty WWT or Landfill is fine because it’s in a Rural, Poor, or some Minority’s area isn’t exactly great (albeit technically “valid” )

Due to the complexity of Scentography , it is still a mix of Qualitative Measurements with a few Quantitative Measurements (depending on process/feedstocks
Ammonia and Hydrogen Sulfide can be measured, and are major Odor Compounds
Others are inherently more subtle/hard to measure, OR are a complex mixture (similar to how Welding Fumes are hard to quantify compared to how easily hydrocarbon vapors/VOCs can be quantified)
A certain degree of subjectivity and varying ability of detection exists in people too, thus a Qualitative Approach (Almost akin to the Scoville Scale for spiciness) is used where the Entire Smell is compared based on how diluted it must be to be undetectable