ຂໍ້ມູນຄຸນນະພາບອາກາດສະໜອງໃຫ້ໂດຍ: the British Columbia, Canada Air Quality Monitoring Agency (www2.gov.bc.ca)
ໃຫ້ສັງເກດວ່າການວັດແທກ PM 2.5 (ຝຸ່ນລະອອງລະອຽດ) ແມ່ນເອົາມາຈາກສະຖານີ: Crofton Substation and the measurements for SO2 (sulfur dioxide) and CO (carbon monoxide) are taken from the station: Tsawwassen