Which air pollutants are measured in determining the AQHI level?
The AQHI measures three air pollutants: ground-level ozone (O3), nitrogen dioxide (NO2), and particulate matter (PM2.5). These three pollutants best represent the mixture of common air pollutants (such as those found in smog) that harm human health. Q: Is it true that Nova Scotia is considered the “tailpipe of North America?” A: Air pollution knows no boundaries between provinces and countries. Nova Scotia receives some air pollution from outside of the province, particularly from the eastern United States and central and eastern Canada. Transboundary air pollution is a common problem experienced by many locations—it is not unique to Nova Scotia. The “tailpipe of North America” term is often interpreted by people to mean that our air is worse here in Atlantic Canada than in other regions of North America. This is not the case—in fact, our air is generally very good compared to that of the source regions.
