A preliminary assessment of PM10 and TSP concentrations in Tuticorin, India

Sivaramasundaram, K.; Muthusubramanian, P.

doi:10.1007/s11869-009-0055-x

Cited by 27 publications

(7 citation statements)

References 11 publications

(12 reference statements)

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“…This shows that the higher the air temperature in the room, the greater the concentration of total dust. This is consistent with previous relevant research such as in India [14] which has seasonal variations and meteorological conditions similar to Indonesia. The positive correlation of air temperature with total dust concentration can occur because of the increasing air temperature, the emitted dust becomes lighter, so it settles to the ground longer.…”

Section: Relationship Between Meteorological Parameter Variables and supporting

confidence: 93%

Air Quality Characteristics in Junior High School Classroom with Natural Ventilation in Pangkep Regency

Mutmainnah

Mulyadi

Hamzah

2019

EPI-IJE

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The indoor air quality room has turned out to be a major concern due to its adverse effects on human health. This is related to the level of activity of human spend almost 90 percent of their time indoors. This study aims to identify the characteristics of air quality in classrooms with natural ventilation systems in three different schools which vary in topography and the surrounding environment, namely coastal areas, lowlands, and mountains. Air quality measurement focuses on CO, CO2 concentration, total dust content, temperature, humidity, and airflow velocity. The statistical results showed significantly different (p <0.05) in air quality parameters among those three schools. The CO and CO2 concentrations in the three schools are below the recommendations required by DOSH and ASHRAE. This clarifies that a well-used of a natural ventilation system is able to maintain the air quality in the classroom. The measurement of total dust levels was above the threshold required by the Ministry of Health of the Republic of Indonesia No.1405/MENKES/SK/XI/2002. In addition, there was a significant relationship (p <0.05) between air pollutants and meteorological factors such as temperature and air humidity in the classroom. The study found that there was an influence of human activity level and the surrounding environment on the amount of pollutants concentration in the classroom.

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Section: Relationship Between Meteorological Parameter Variables and supporting

confidence: 93%

Air Quality Characteristics in Junior High School Classroom with Natural Ventilation in Pangkep Regency

Mutmainnah

Mulyadi

Hamzah

2019

EPI-IJE

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“…In early morning hours, relative humidity prevailed over the sampling site was higher (with 85-87% range). Higher relative humidity in the atmosphere could make the particulate to coagulate and to become heavier thereby helping in quick settling (Sivaramasundaram and Muthusubramanian 2010). Similar nocturnal behavior of particulate matter concentration was reported earlier over the tropical coastal site (Pillai et al 2002) and urban areas (Latha and Badarinath 2005).…”

Section: Diurnal Variations Of Pmsupporting

confidence: 80%

Particulate Matter Concentrations in the Southern Tip of India: Temporal Variation, Meteorological Influences, and Source Identification

et al. 2017

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Objective This study investigates the temporal variability of particulate matter (PM10 and PM2.5) concentrations at an inland tropical coastal site in Thiruvananthapuram (8.5°N, 76.9°E), which is in the province of Kerala in the southern part of India. Method Continuous measurements of PM10 and PM2.5 were carried out with high resolution datasets from March 2014 to February 2016. Variations of PM10 and PM2.5 concentrations were statistically analyzed. The conditional bivariate probability function analysis, coherence wavelet transform and HYSPLIT back trajectory model are used for this study. Results The annual mean mass concentrations of PM10 and PM2.5 were 44.5 ± 14.6 and 27.7 ± 10 lg m , respectively, for PM10 and PM2.5. Both concentrations exhibited higher values during winter and lower values during monsoon. The coarse particle concentration (PM10-PM2.5) during the study period was 17.38 ± 3.64 lg m . Diurnal analysis revealed that the concentrations were higher during morning (*08:00 IST) and evening (*20:00 IST) and low during 12:00 IST-17:00 IST. The anthropogenic activities, the diurnal variation of boundary-layer height and the effects of meteorological parameters are the major elements for these variations. The effects of meteorological parameters on particulate matter were studied, and a negative correlation was observed with wind speed, rainfall, and relative humidity. The relationship between particulate matter and rainfall was investigated by applying coherence wavelet transform. The bivariate analysis showed that high PM2.5 concentrations were associated with low wind speeds indicating the presence of local pollutants. The highest concentrations were found for PM10 with moderate to strong winds, which represent the presence of local emissions. as well as long-range transport. The conditional bivariate probability function analysis was performed to identify the probability of source contributions to PM concentrations at different wind speed and direction. The results indicated that the highest probability to get high concentrations of PM from south-southwest direction with wind speed \5 ms -1. HYSPLIT model back-trajectories of high PM10 episodes show two dominant streamlines, one originating from the Bay of Bengal region and another from Middle East Asia.

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“…The northern coast of state Tamil Nadu experiences summer from April to June, followed by pre-monsoon season from July to September. The periods October to December are the Monsoon season and post-monsoon period is from January to March [13]. The study area experienced heavy precipitation and cyclone between October and December during Northeast monsoon.…”

Section: Description Of Study Areamentioning

confidence: 99%

Influence of Temperature, Relative Humidity and Seasonal Variability on Ambient Air Quality in a Coastal Urban Area

Jayamurugan

Kumaravel

Palanivelraja

et al. 2013

International Journal of Atmospheric Sciences

128

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The concentration of air pollutants in ambient air is governed by the meteorological parameters such as atmospheric wind speed, wind direction, relative humidity, and temperature. This study analyses the influence of temperature and relative humidity on ambient SO2, NOx, RSPM, and SPM concentrations at North Chennai, a coastal city in India, during monsoon, post-monsoon, summer, and pre-monsoon seasons for 2010-11 using regression analysis. The results of the study show that both SO2 and NOx were negatively correlated in summer (r2=0.25 for SO2 and r2=0.15 for NOx) and moderately and positively correlated (r2=0.32 for SO2 and r2=0.51 for NOx) during post-monsoon season with temperature. RSPM and SPM had positive correlation with temperature in all the seasons except post-monsoon one. These findings indicate that the influence of temperature on gaseous pollutant (SO2 & NOx) is much more effective in summer than other seasons, due to higher temperature range, but in case of particulate, the correlation was found contradictory. The very weak to moderate correlations existing between the temperature and ambient pollutant concentration during all seasons indicate the influence of inconstant thermal variation in the coastal region. Statistically significant negative correlations were found between humidity and particulates (RSPM and SPM) in all the four seasons, but level of correlation was found moderate only during monsoon (r2=0.51 and r2=0.41) in comparison with other three seasons and no significant correlation was found between humidity and SO2, NOx in all the seasons. It is suggested from this study that the influence of humidity is effective on subsiding particulates in the coastal region.

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A preliminary assessment of PM10 and TSP concentrations in Tuticorin, India

Cited by 27 publications

References 11 publications

Air Quality Characteristics in Junior High School Classroom with Natural Ventilation in Pangkep Regency

Air Quality Characteristics in Junior High School Classroom with Natural Ventilation in Pangkep Regency

Particulate Matter Concentrations in the Southern Tip of India: Temporal Variation, Meteorological Influences, and Source Identification

Influence of Temperature, Relative Humidity and Seasonal Variability on Ambient Air Quality in a Coastal Urban Area

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