Air Quality assesment in Nonthaburi Province in year 2005-2009

Abstract

The objective of this study was to create an air-quality map from a relationship between
air quality index and distribution of pollution in Nonthaburi province. All collected data were
obtained from 7 air-base stations of Pollution Control Department (PCD) and extracted to create
variables using yearly average data from 2005 ??? 2009. The extracted independent variables were
Sulfur dioxide (SO2), Nitrogen dioxide (NO2), Carbon monoxide (CO), Ozone (O3), and Particulate
Matter smaller than 10 microns (PM10); and, extracted dependent variable was Air quality index
(AQI).
The result revealed that Nonthaburi Province had air quality in moderate level. The
value of air quality index (75-78) stood in a range of 51-100 indicated that the pollution did not have
any impact on people in the study area. The relationship between dependent variable and
independent variable could be explained by Y = 17.031 + 1(O3) + 0.371 (PM10) + 0.454(NO2). From
the relationship, O3 played as an important role in this study. NO2 and PM10 also associated with
AQI, respectively.

Keywords: Dispersion, Air quality, Nonthaburi