Pinging back in with some more resources. Got an email follow up to this post from @silentsairam I'll share it below!
"With respect to your question on "Air pollution in Indoor environment specific to Hair Salons" on Public Lab forum, sharing here some of the links and papers that might give more insights & necessary information for the same.
1) All papers focuses on the primary pollutant HCHO.
2) Addition to that, benzene and all VOCs.
3) Throws more on testing samples , results and Indoor structure of salons.
4) Diseases caused by these chemicals on longer term.
Link and title of the research study:
Here 1 -- Indoor concentrations of VOCs in beauty salons; association with cosmetic practices and health risk assessment
Here 2 -- Indoor Air in Beauty Salons and Occupational Health Exposure of Cosmetologists to Chemical Substances
Here 3 -- Air pollution of beauty salons by cosmetics from the analysis of suspended particulate matter ( Interesting Data)
Here 4 -- Assessing Indoor Air Pollution within Different Areas of Female Beauty Centers and Exploring Their Relation to Various Respiratory Symptoms
Here 5 -- VOC sources and exposures in nail salons: a pilot study in Michigan, USA
Here 6 -- Exposure to BTEX in beauty salons: bio monitoring, urinary excretion, clinical symptoms, and health risk assessments
Hope this helps and thanks for your time."
It does! Thanks so much!