Investigation the Effect of Humidity on the Distribution of Suspended Particle Size, from Various Sprays

Today, air pollution has become a major concern for human health. The aim of this study was to determine the effect of different humidity on the number size distribution of particles. Particle size was measured using a scanning mobility particle sizer. Using four different spray particles in the laboratory environment, concentration of suspended particles are measured and compared. The sprays include body spray, head hair spray, glass cleaner and respiratory spray. Body spray with 8,015 particle per cubic meter, can be the most effectiveness on human health.for head hair, glass cleaner and respiratory sprays, number concentration respectively 3,705, 1,541, and 4,135 particle per cubic meter in the low humidity environment and 2,234, 1,101 and 3,949 in high humidity environment were measured. For body spray, head hair spray, glass cleaner and respiratory spray, the most number concentration og suspended particles are in the size between 38 to 120 nm, 318 to 416 nm, 392 to 650 nm and 230 to 350 nm respectively. It was also found that larger particles would be more successful in absorbing humidity, and this absorption was apparent for particles larger than 200 nm.