Particulate Matter Concentration and Microbial Load in Heavy Traffic Areas of District Lahore, Pakistan

A major threat to the environment and public health is air pollution. Previous research has looked at harmful impacts of both short- long-term particulate matter exposure. In addition, PM (particulate matter) fine or coarse size (PM 2.5 10) was linearly related with mortality, being associated mortality PM10 connected short-term mortality. Traffic congestion one foremost problems. Objective: To characterize gram positive negative airborne bacteria from samples heavy traffic areas. Methods: These were assessed using direct as well indirect sampling technique. total 40 10 each areas (i.e., Bhatti Gate, Bohr wala chowk, Chauburji Railway Station) collected. collected help Mini Vol portable sampler. Filter papers containing placed on prepared petri dishes. The dishes then kept in an incubator for 24 hours 37 °C, appearances colonies characterized proceeded morphological biochemical identification. Results: results showed presence different including Bacillus spp., Micrococcus spp. Streptococcus Staphylococcus aureus, Pseudomonas aeroginosa. Conclusion: It found that heavily polluted micrococcus aureus.