What is an Odor?
Odors, odours or fragrances are always caused by one or more volatilized chemical compounds.  Odors present at very low concentrations may still be detected by humans and other animals which perceive this by the sense of olfaction.  Factories often produce odors that result from processes taking place in their business.  Businesses do not have a right to vent odors (volatilized chemical compounds) into the public air.  Venting such chemicals may be dangerous or create a nuisance to a community.   A community can require a business to abate such issues by controlling odors that come from the business.
Odors are also called scents, which can refer to both pleasant and unpleasant odors.  We all know that an odor may be pleasant to one person and unpleasant to another.   An odor that is unnoticeable to one person may be obnoxious to another.
More at Wikipedia

TOXIC AIR ~ THE SILENT THREAT TO MENTAL HEALTH BY SUNDIP R. DOSHI         click here for full article
"News Flash - Mental Health is greatly impacted by the air you breathe! Studies shows that increasing exposure to air pollution may increase the risk of anxiety, depression and other mental health related issues. A recent study by University of Washington researchers found psychological distress and its association with air pollution. The study found that air pollution has been associated with behavior changes – spending less time outside or leading a more sedentary lifestyle – that can be related to psychological distress or social isolation.Yet another study by Yale School of Public Health found that Air Pollution is contributing to higher levels of depression. 
       Smog in our brains - connection between air pollution and cognitive abilities
Over the years, researchers have found that high levels of air pollution may damage children's cognitive abilities, increase adults' risk of cognitive decline and possibly even contribute to depression. Research from Harvard School of Public Health to Institute for the Developing Mind, Children's Hospital of Los Angeles, to Boston University's School of Public Health to Columbia University Mailman School of Public Health indicate a correlation between air quality and brain development. These and other institutions continue to research associations and are making significant progress to identify specific bad actors." 
"Breathing toxic air is not okay - we take 20,000 breaths a day and every breath matters - we know clean air can reduce respiratory disorders but it may just prevent mental health issues." 
  
  Clean AIR is every citizen's right.
To protect clean air involves citizens to be concerned and to act.
Talk to your neighbors, make calls, send emails, ask questions, learn your community's rules, processes and standards. 
Ask for data and facts - don't allow politicians to gloss over issues with vague niceties or make you feel like you are alone. 
​Require that rules be enforced, and when promises are made, require that promises are kept.