Sweating the Small Stuff
Lauren Law, Ena Vu
Vancouver Technical
Floor Location : 2207

Particulate matter (PM) is an air pollution which consists of dust, pollen, dirt, and polycyclic aromatic hydrocarbons (like soot and ash). Particulate matter is a serious danger to human health, but not much study has been done on how PM affects the environment. So, we decided to test how the accumulation of PM on the surface of leaves affects the ability of light to induce plants and trees to undergo transpiration. We did this by collecting laurel leaves from various locations in Vancouver and then performing transpiration tests using a potometer. The data we collected is very surprising and unique.