Toxic Air Pollutants in Our Region Toxic Air Pollutants in Our Region <div class="ExternalClass31BB646E78B64908BC2F863330BE77FE"><p>​In addition to common air pollutants like fine particles, nitrogen oxides, and ground-level ozone, the air we breathe contains tiny amounts of hundreds of other substances, many of which may harm our health.  These substances are often referred to as “toxic air pollutants” because they have been linked to cancer and other health issues like reproductive and developmental problems. </p><p>The largest sources of DPM in our region are marine vessels, followed by non-road engines (construction equipment like backhoes, bulldozers and diggers), and heavy-duty trucks.</p><p>The good news is that DPM emissions are expected to decline significantly with the implementation of international regulations requiring the use of cleaner marine diesel, more stringent engine emission standards for light and heavy-duty vehicles, and regulations such as Metro Vancouver’s <a href="/services/Permits-regulations-enforcement/non-road-diesel/Pages/default.aspx" target="_blank">bylaw for non-road diesel engines</a>.  Metro Vancouver is developing programs to reduce DPM emissions from heavy-duty diesel trucks.</p><p>Aside from DPM, our study also showed that light-duty vehicles, gasoline powered non-road engines, and wood burning are significant sources of other air toxics like formaldehyde, benzene, 1,3-butadiene, and acrolein. To reduce health risks associated with exposure to these toxic air pollutants, we are investigating measures to:</p><p>• Prevent vehicle emissions from increasing now that the AirCare program is no longer in place. <br>• Address emissions from gasoline non-road engines.<br>• Reduce emissions from residential wood burning.</p></div>|#923c98f2-db26-4fa0-8ad4-bed6c5ee91e6;L0|#0923c98f2-db26-4fa0-8ad4-bed6c5ee91e6|Issue 8;GTSet|#d14ffe11-45dc-48fb-8684-ff109cf15a74<div class="ExternalClass3082143443204A218D9940140DA30AA9"><p>​A new Metro Vancouver study has confirmed that diesel particulate matter (DPM) remains the key driver of health risk from toxic air pollutants in our region. Risk assessments for metropolitan regions similar to Metro Vancouver (i.e., Seattle, Portland, San Francisco) have found similar results. </p></div>