Transformational characteristics of ground-level ozone during high particulate events in urban area of Malaysia

被引：18

作者：

Awang, Norrimi Rosaida ^{[1
]}

Ramli, Nor Azam ^{[2
]}

Shith, Syabiha ^{[2
]}

Zainordin, Nazatul Syadia ^{[2
]}

Manogaran, Hemamalini ^{[1
]}

机构：

[1] Univ Malaysia Kelantan, Fac Earth Sci, Kampus Jeli,Locked Bag 100, Jeli 17600, Kelantan, Malaysia

[2] Univ Sains Malaysia, Sch Civil Engn, Environm Assessment & Clean Air Res, Engn Campus, Nibong Tebal 14300, Penang, Malaysia

来源：

AIR QUALITY ATMOSPHERE AND HEALTH | 2018年 / 11卷 / 06期

关键词：

Ozone production; Photochemistry rate; Anthropogenic sources; Ozone precursor; SURFACE OZONE; SOURCE APPORTIONMENT; TROPOSPHERIC OZONE; AIR-POLLUTION; KLANG VALLEY; HAZE; MODEL; PHOTOLYSIS; ATMOSPHERE; AEROSOLS;

D O I：

10.1007/s11869-018-0578-0

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Observations of ground-level ozone (O-3), nitric oxide (NO), nitrogen dioxide (NO2), particulate matter (PM10) and meteorological parameter (temperature, relative humidity and wind speed) fluctuations during high particulate event (HPE) and non-HPE in Malaysia have been conducted for 2 years (2013 and 2014). The study focuses on urban areas, namely, Shah Alam, Petaling Jaya and Bandaraya Melaka. The diurnal variations of ground-level O-3 concentration were higher during HPE than those during non-HPE in all urban areas. The concentration of O-3 fluctuated more in 2014 than 2013 due to the higher incidences of HPE. Temperature and wind speed fluctuated with higher PM10, NO2 and NO concentrations during HPE than those during non-HPE in all urban sites. Relative humidity was lower during HPE than that during non-HPE. Positive correlations were found between PM10 and ozone during HPE for Shah Alam and Petaling Jaya with 0.81 and 0.79, respectively. Meanwhile, negative correlation (- 0.76) was recorded for Bandaraya Melaka. The non-HPE correlation of PM10 and O-3 showed negative values for all locations except Petaling Jaya (0.02). Temperature and wind speed shows a strong positive correlation with ozone for all locations during HPE and non-HPE with the highest at Shah Alam (0.97). Inverse relationships were found between relative humidity and O-3, in which the highest was for Shah Alam (- 0.96) in 2013 and Shah Alam (- 0.97) and Bandaraya Melaka (- 0.97) in 2014. The result of the ozone best-fit equation obtained an R (2) of 0.6730. The study parameters had a significant positive relationship with the ozone predictions during HPE.

引用

页码：715 / 727

页数：13

共 64 条

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