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Volume 5, Issue 3 (Suppl) Occup Med Health Aff, an open access journal
ISSN:2329-6879 Occupational Health-2017
September 13-14, 2017
.
September 13-14, 2017 | Dallas, USA
Occupational Health & Safety
6th International Conference and Exhibition on
Occup Med Health Aff 2017, 5:3 (Suppl)
DOI: 10.4172/2329-6879-C1-035
Assessment of numerical concentration of suspended particles and influence on breathing zone particle
size distributions
Seyedtaghi Mirmohammadi, Mohsen Gorganifioozjaee, Jamshid Yazdani Charati, Syavash Etemadinejad, Saeid Abedian, Hosein Kariminia, Razye Yousefinejad
and Seide Sadat Shobeiri
Mazandaran University of Medical Sciences, Iran
Airborne particulate matters (PM) as one of the air pollutants are environmental pollutants which usually have adverse effects
on human health. Airborne PM exist in the workplaces and the industries with an aerodynamic diameter between 0.3 to 20
µm requirements of health significance. The present study aimed to determine the extent of the frequency distribution of PM and
how particle emission in the different working units’ factory of casting is done. Fifteen workstations were assessed for numerical
concentration (count/liter) particles in the range 0.3 to 20 µm using GRIMM1100 real time portable and stationary aerosol ultrafine
particle counters. As well as SPSS V-20 statistical software and 20 Mann-Whitney and GEE tests have been used to analyze the
research data. Results of particles distribution measurement in numeric form has shown that the most frequency of PM was between
0.3 to 0.4 µm at 5 working tasks, also with a larger diameter of the particles, their number concentration per air volume being reduced
during almost constant process. Comparison of the frequency of particle number with the various job duties revealed that the most
contaminated part of the template as the drain unit has the highest density of the particles. Assessment of the indoor air parameters
indicated that by increasing the air flow rate decrease the indoor air pollution in the workplace. As well as an increase in temperature
and relative humidity on the workstations increased the frequency of particle number distributed in the working environment.