Appraisal of Variation in Particulate Pollution Loading with a Change Induced by Anthropogenic Cultural Activity Over a South Indian City-Visakhapatnam

2021 ◽  
Vol 18 (4) ◽  
pp. 63-71
Author(s):  
Kavitha Chandu ◽  
Dharma Raju Akasapu ◽  
Samudrala Venkata Jagannadha Kumar ◽  
Madhavaprasad Dasari
Keyword(s):  
Air Quality ◽  
Air Pollutants ◽  
Ambient Air ◽  
Cultural Activity ◽  
Ambient Air Quality ◽  
Particulate Pollution ◽  
South Indian ◽  
Pollution Loading ◽  
Indian City ◽  
Pm2.5 And Pm10

The study focusses on the variation of air quality assessed from mass concentrations of air pollutants in the year 2020 (particulate matter (PM2.5 and PM10), sulphur dioxide (SO2), nitrogen dioxide (NO2), carbon monoxide (CO) and ozone (O3)) amidst COVID–19 restrictions on firework activity during Diwali festive period in Visakhapatnam city. The results are compared with 2018 and 2019. The results indicate that the firework activity affected ambient air quality. The effect is lower in 2020 than in 2018 and even in 2019. In 2019, the effect is lower compared to 2018 due to the washout of pollutants caused by unusual rains on those days.

scholarly journals Assessment of the contribution of TEX air pollutants from Nigeria’s petroleum refineries to the ambient air quality: Part II

2021 ◽  
Vol 8 (1) ◽  
pp. 1947007
Author(s):  
Ebenezer Leke Odekanle ◽  
Chinchong Blessing Bakut ◽  
Abiodun Paul Olalekan ◽  
Roseline Oluwaseun Ogundokun ◽  
Charity O. Aremu ◽  
...  
Keyword(s):  
Air Quality ◽  
Air Pollutants ◽  
Ambient Air ◽  
Ambient Air Quality ◽  
Petroleum Refineries

Monitoring ambient air quality in Indian city airsheds

2021 ◽  
Author(s):  
Sarath Guttikunda ◽  
Puja Jawahar ◽  
Nishadh KA
Keyword(s):  
Air Quality ◽  
Ambient Air ◽  
Ambient Air Quality ◽  
Indian City

scholarly journals Ambient air quality and the effects of air pollutants on otolaryngology in Beijing

2015 ◽  
Vol 187 (8) ◽  
Author(s):  
Fengying Zhang ◽  
Jin Xu ◽  
Ziying Zhang ◽  
Haiying Meng ◽  
Li Wang ◽  
...  
Keyword(s):  
Air Quality ◽  
Air Pollutants ◽  
Ambient Air ◽  
Ambient Air Quality

Indexing Method for Assessment of Air Quality

2019 ◽  
pp. 68-85
Author(s):  
Rajiv Ganguly
Keyword(s):  
Air Quality ◽  
Environmental Protection Agency ◽  
General Public ◽  
Ambient Air ◽  
The United States ◽  
Quality Indices ◽  
Ambient Air Quality ◽  
The Status ◽  
Indian City ◽  
Central Pollution Control Board

Rapid urbanization and globalization has led to severe degradation of existing air quality in the majority of Indian cities. In this context, the general public has been aware of their exposure to ambient air quality and the effects of such air pollutants on human health. Hence, the concept of Air quality indices (AQI) is often used by regulatory authorities in conveying the status of existing ambient air quality to the general public. The chapter presents the application of air quality indices for assessing the existing air quality standards in an Indian city, Dharamshala, a tourist location in Himachal Pradesh, for the period of 2016-2017. Two different methods of determining AQI have been used wherein one method is used as the revised Central Pollution Control Board (CPCB), India with different sub-indices for Indian conditions based on the United States Environmental Protection Agency (USEPA) methodology and another alternative method utilizes contribution from all criteria pollutants.

scholarly journals Assessment of the contribution of hazardous air pollutants from nigeria’s petroleum refineries to ambient air quality. Part 1

2021 ◽  
Vol 8 (1) ◽  
pp. 1870792
Author(s):  
Bamidele Sunday Fakinle ◽  
Abiodun Paul Olalekan ◽  
Ebenezer Leke Odekanle ◽  
Chinchong Blessing Bakut ◽  
Roseline Oluwaseun Ogundokun ◽  
...  
Keyword(s):  
Air Quality ◽  
Air Pollutants ◽  
Ambient Air ◽  
Hazardous Air Pollutants ◽  
Ambient Air Quality ◽  
Petroleum Refineries

scholarly journals An assessment of ambient air quality in two major cities in the state of Kuwait

2015 ◽  
Vol 4 (2) ◽  
pp. 358 ◽  
Author(s):  
Raslan Alenezi ◽  
Bader Al-anezi
Keyword(s):  
Air Pollution ◽  
Air Quality ◽  
Power Plant ◽  
Air Pollutants ◽  
Road Traffic ◽  
Ambient Air ◽  
The State ◽  
Oil Fields ◽  
Ambient Air Quality ◽  
The State Of Kuwait

In this study, hourly mean continuous air pollution data for the year 2010 from two monitoring stations in major urban districts in the State of Kuwait were analyzed. The ambient air quality in the Al-Mansouriah and Al-Jahra districts was evaluated in terms of the hourly average concentrations of selected major air pollutants during the winter and summer seasons. The diurnal variations of these pollutants were analyzed, and in-depth comparisons of the two pollutant concentrations for the two districts were conducted to determine the predominant sources of the air pollutants. The concentrations of CO, PM10 and NO2 in the two districts exhibited different patterns in the summer and winter due to differences in the activities that take place in the surrounding areas. The concentrations of SO2 were high in both cities because of the Al-Doha power plant and oil fields near the city in Al-Jahra. The ozone concentration is highly correlated with NOx emissions and is greater in the summer than in the winter. The results confirm that road traffic is a major source of air pollution in the Al-Mansouriah district. The Al-Doha power plant and the oil fields near Al-Jahra greatly affect the air quality in that district.

scholarly journals Chemical composition of pre-monsoon air in the Indo-Gangetic Plain measured using a new air quality facility and PTR-MS: high surface ozone and strong influence of biomass burning

2014 ◽  
Vol 14 (12) ◽  
pp. 5921-5941 ◽  
Author(s):  
V. Sinha ◽  
V. Kumar ◽  
C. Sarkar
Keyword(s):  
Air Quality ◽  
Biomass Burning ◽  
Atmospheric Chemistry ◽  
Air Pollutants ◽  
Surface Ozone ◽  
Ambient Air ◽  
Ambient Air Quality ◽  
Gangetic Plain ◽  
Indo Gangetic Plain

Abstract. One seventh of the world's population lives in the Indo-Gangetic Plain (IGP) and the fertile region sustains agricultural food crop production for much of South Asia, yet it remains one of the most under-studied regions of the world in terms of atmospheric composition and chemistry. In particular, the emissions and chemistry of volatile organic compounds (VOCs) that form surface ozone and secondary organic aerosol through photochemical reactions involving nitrogen oxides are not well understood. In this study, ambient levels of VOCs such as methanol, acetone, acetaldehyde, acetonitrile and isoprene were measured for the first time in the IGP. A new atmospheric chemistry facility that combines India's first high-sensitivity proton transfer reaction mass spectrometer, an ambient air quality station and a meteorological station, was used to quantify in situ levels of several VOCs and air pollutants in May 2012 at a suburban site in Mohali (northwest IGP). Westerly winds arriving at high wind speeds (5–20 m s−1) in the pre-monsoon season at the site were conducive for chemical characterization of regional emission signatures. Average levels of VOCs and air pollutants in May~2012 ranged from 1.2 to 2.7 nmol mol−1 for aromatic VOCs, 5.9 to 37.5 nmol mol−1 for the oxygenated VOCs, 1.4 nmol mol−1 for acetonitrile, 1.9 nmol mol−1 for isoprene, 567 nmol mol−1 for carbon monoxide, 57.8 nmol mol−1 for ozone, 11.5 nmol mol−1 for nitrogen oxides, 7.3 nmol mol−1 for sulfur dioxide, 104 μg m−3 for PM2.5 and 276 μg m−3 for PM10. By analyzing the one-minute in situ data with meteorological parameters and applying chemical tracers (e.g., acetonitrile for biomass burning) and inter-VOC correlations, we were able to constrain major emission source activities on both temporal and diel scales. Wheat residue burning caused massive increases (> 3 times the baseline values) for all the measured VOCs and primary pollutants. Other forms of biomass burning at night were also a significant source of oxygenated VOCs and isoprene (r2 with acetonitrile ≥0.5 for nighttime data), which is remarkable in terms of atmospheric chemistry implications. Surface ozone exceeded the 8 h national ambient air quality limit of 100 μg O3 m−3 (~50 ppbv) on a daily basis, except for 17 May 2012, when a severe dust storm event (PM2.5 > 800 μg m−3; PM10 > 2700 μg m−3) characterized by long-range transport from the west impacted the site. The novel data set and results point to the occurrence of high primary emissions of reactive VOCs. They also highlight the urgent need for establishing more comprehensive observational facilities in the IGP to constrain the spatial and seasonal variability of atmospheric chemical constituents. Such efforts will enable a mechanistic-level understanding of the in situ chemical processes controlling the formation of surface ozone, a necessary step for effective ozone mitigation and improvement of the regional air quality.

scholarly journals Air of Uncertainty from pollution profiteers: Status of ambient air quality of sawmill industry in Ilorin Metropolis, Kwara State, Nigeria

2021 ◽  
Author(s):  
Morufu Raimi ◽  
Timothy Kayode Samson ◽  
Ajayi Bankole Sunday ◽  
Adio Zulkarnaini Olalekan ◽  
Odipe Oluwaseun Emmanuel ◽  
...  
Keyword(s):  
Air Pollution ◽  
Air Quality ◽  
Air Pollutants ◽  
Ambient Air ◽  
Ambient Air Pollution ◽  
Health Concern ◽  
Ambient Air Quality ◽  
Direct Reading ◽  
Life Years

Abstract We can’t stop breathing, but we can do something about the quality of air that we breathe. Clean fresh air is indispensable ingredient for a good life quality. Individuals poses the right towards expecting that the breathed air will not harm people. Thus, fighting air pollution will not only improve health outcomes, productivity, and well-being, it’s also essential toward reducing the emissions of greenhouse gas as well as fighting climate change. For examples, a third of the global population is at risk from unhealthy of ambient air pollutants concentrations, with the loss of approximately 6.4 million healthy-life-years attributed specifically to chronic exposure to ambient particulate matter. Expert panels have consistently rated air pollution as a greater health hazard than water pollution. Pollution of air is the leading source of unexplained and undiagnosed diseases, besides have remained associated with a variety of serious human health risks, and in fact, a threshold has not been established under which these pollutants exert no adverse effects. This study evaluates ambient air quality at major sawmill sites in Ilorin Metropolis, Kwara State, Nigeria. “Measurements of Air pollution were accurately carried out using direct reading, automatic in situ gas monitors; Hand held mobile multi-gas monitor with model AS8900 [Combustible (LEL), and Oxygen (O2)], BLATN with model BR – Smart Series air quality monitor (PM10, Formaldehyde) and air quality multimeter with model B SIDE EET100 (Dust (PM2.5), VOC, Temperature and Relative Humidity)”. The outcomes disclosed among others, the average concentrations of CO, O2 as well as other measured parameters for instance formaldehyde (HcHo) etc., they are also consistently low as well as within acceptable range in terms of National as well as Global monitoring standards for air quality indices. However, there are few exceptions for instance the average volatile organic compounds (VOCs) concentrations, PM2.5, PM10 as well as Combustible (LEL) respectively, which are higher when compared to National and Global standards. This high figure is due to pollutant amount existing in the sawmills air environment resulting from input of influents from activities of the sawmill. However, as a result, air pollution in the city of Ilorin is found to be increasingly polluted and are of major health concern because of their synergistic action. Due to the high evidences and values, it can lead to a remarkable rise in over-all figure of hospital visits/ patients’ admissions with acute respiratory illnesses as soon as air pollutants level remained high. Hence, there is the need for an aggressive control of ambient air pollution.

Sign in / Sign up

Export Citation Format

Share Document