This is very true! Due to chemtrails, fossil fuel and other toxic pollutants (heavy metals, pesticides,...) air pollution is really alarming. Most health organizations measure the moderate pm 10 particles for financial and economic reasons (not for your health). The pm 2.5 particles are neglected though these are the ones that do affect our health! We're living in a hypocritical world where money is the goal and purpose of life -- meaning even health organizations remain silent about the health-challenging pm 2.5 norm. Every country that takes health and well-being seriously should publish during their weather forecasts the pm 2.5 index (even though some countries, like Belgium in the first place object because they are almost always in the yellow-orange-red range!).
If you want to take a look at the air quality of your place of residence (pm 2.5), check the following web sites:
* worldwide: http://aqicn.org/here
(very accurate but their server is not always 100% up). You can look at all cities worldwide where the pm 2.5 is measured. They have apps for your smartphone or tablet as well.
* France/Belgium: http://www2.prevair.org/
(make sure to change the "Polluant" option in the left nav bar to PM2.5 by clicking the "Polluant" option left and change the "PM10 - Particules en suspension" to "PM2.5 - Particules en suspension"
* USA: https://cfpub.epa.gov/airnow/index.cfm?action=airnow.pollutant_summary&pollutant=pm25