scholarly journals A comparative study of air quality assessment before and during lockdown among Metro Cities of India

2020 ◽  
Vol 21 (3) ◽  
pp. 177-185
Author(s):  
P. Chaturvedi ◽  
Kajal S. Rathore ◽  
Mayank Chaturvedi ◽  
Shiv Om Singh
Keyword(s):  
Particulate Matter ◽  
Standard Deviation ◽  
Air Quality ◽  
Comparative Study ◽  
Pollution Control ◽  
Strong Correlation ◽  
Control Board ◽  
Air Quality Assessment ◽  
Sulphur Oxides ◽  
Central Pollution Control Board

The aim of present study was to compare the air quality before and during lockdown due to COVID-19 pandemic at selected metro cities of India (Delhi, Kolkata, Bangalore, and Mumbai). The data of the selected parameters (Particulate Matter having diameter equal to or less than 2.5micron (PM2.5), Particulate Matter having diameter equal to or less than 10micron (PM10), Nitrogen oxides (NO2), Ammonia (NH3), Sulphur oxides (SO2) Carbon monoxides (CO), and Ozone (O3) for the present study was collected from the official website of Central pollution Control Board (CPCB) and analyzed by calculating mean, standard deviation, total variance, and correlation coefficient. Dendrogram analysis was also performed site wise. The concentration of all the parameters except ozone was found highest at Delhi among all the sites. Ozone values were found highest at Bangalore. A strong correlation was observed between PM10 and PM2.5 at all the sites during the study period. A great change in the values of all the studied parameters was observed before and during the lockdown periods. In metro cities values of PM2.5 was found higher than PM10 except at Bangalore where values of PM2.5 was found lower than PM10. Among all the studied metro cities, Delhi was found highly polluted before and during the lockdown period while Bangalore was found least polluted.

scholarly journals A Comparative Study between Pre-construction and Construction Phases of Champhai-Zokhawthar Road Construction, Mizoram: Air Quality and Noise Quality Assessments

2019 ◽  
Vol 7 (1) ◽  
pp. 47-53
Author(s):  
Lalven tluanga ◽  
◽  
H. Lalramnghinglova
Keyword(s):  
Economic Growth ◽  
Particulate Matter ◽  
Air Quality ◽  
Comparative Study ◽  
Noise Level ◽  
Road Construction ◽  
Suspended Particulate ◽  
The Mean ◽  
Negative Impacts

In recent years, Mizoram has made immense progress in various sectors and initiated developmental programmes for its economic growth. An important contributing factor to this development and growth is the transport connectivity projects. Although connectivity projects can boost economic growth, its negative effects cannot be neglected. In view of this, the present research studies the impacts of Champhai – Zokhawthar road construction on the air quality and noise quality of the region. This comparative study of the impact on the quality of air and noise pollution in the pre-construction phase and construction phase provide a clear-cut example of the negative impacts caused by road construction and provide a fresh outlook for formulation of improved management plans. Air quality assessment was carried out using High Volume Air Sampler and the following parameters were monitored – suspended particulate matter (SPM), respirable suspended particulate matter (RSPM), nitrogen dioxide (NO2) and sulphur dioxide (SO2). The results indicate that mean SPM concentration was increased by 22.82 µg/m3; RSPM concentration by 14.67 µg/m3; NO2 concentration by 4.08 µg/m3; and SO2 concentration was increased by 0.06 µg/m3 from the pre-construction phase to construction phase. Noise quality assessment was carried out at three sites – Zotlang, Melbuk and Zokhawthar by using Lutron SL-4001 Sound Level Meter and Leq, Lmax and Lmin were recorded and calculated. The mean noise level at Zotlang wasincreased by 8.72 dB (A) and at Melbuk the mean noise level was increased by 9.35 dB (A). However, at Zokhawthar, there was a decrease in mean noise level by 0.13 dB (A). From the present study, it is evident that road construction poses a threat to the air quality and noise quality of the study area and improved measuresneed to betaken to curb its negative impacts

An assessment of ambient air quality using AQI and exceedance factor for Udaipur City, Rajasthan (India)

2021 ◽  
pp. 94-106
Author(s):  
Porush Kumar ◽  
Kuldeep ◽  
Nilima Gautam
Keyword(s):  
Air Pollution ◽  
Air Quality ◽  
Pollution Control ◽  
Urban Air Pollution ◽  
Ambient Air ◽  
Quality Monitoring ◽  
Urban Air ◽  
Air Quality Monitoring ◽  
Ambient Air Quality ◽  
Control Board

Air pollution is a severe issue of concern worldwide due to its most significant environmental risk to human health today. All substances that appear in excessive amounts in the environment, such as PM10, NO2, or SO2, may be associated with severe health problems. Anthropogenic sources of these pollutants are mainly responsible for the deterioration of urban air quality. These sources include stationary point sources, mobile sources, waste disposal landfills, open burning, and similar others. Due to these pollutants, people are at increased risk of various serious diseases like breathing problems and heart disease, and the death rate due to these diseases can also increase. Hence, air quality monitoring is essential in urban areas to control and regulate the emission of these pollutants to reduce the health impacts on human beings. Udaipur has been selected for the assessment of air quality with monitored air quality data. Air quality monitoring stations in Udaipur city are operated by the CPCB (Central Pollution Control Board) and RSPCB (Rajasthan State Pollution Control Board). The purpose of this study is to characterize the level of urban air pollution through the measurement of PM10, NO2, or SO2 in Udaipur city, Rajasthan (India). Four sampling locations were selected for Udaipur city to assess the effect of urban air pollution and ambient air quality, and it was monitored for a year from 1st January 2019 to 31st December 2019. The air quality index has been calculated with measured values of PM10, NO2, and SO2. The concentration of PM10 is at a critical level of pollution and primarily responsible for bad air quality and high air quality Index in Udaipur city.

Air Quality Assessment of Particulate Matter Near a Concrete Block Plant and Traffic in Bladensburg, Maryland

2020 ◽  
Vol 13 (3) ◽  
pp. 75-85
Author(s):  
Rosemary I. Ezeugoh ◽  
Robin Puett ◽  
Devon Payne-Sturges ◽  
Raul Cruz-Cano ◽  
Sacoby M. Wilson
Keyword(s):  
Particulate Matter ◽  
Air Quality ◽  
Quality Assessment ◽  
Concrete Block ◽  
Air Quality Assessment

Environmental Protection and Regulations in India: Role of the Central Pollution Control Board

2018 ◽  
Vol 64 (4) ◽  
pp. 645-663 ◽  
Author(s):  
Prakash Chand
Keyword(s):  
Environmental Protection ◽  
Pollution Control ◽  
Prevention And Control ◽  
National Committee ◽  
Control Board ◽  
Central Pollution Control Board ◽  
The Creation ◽  
The Government ◽  
And Control

Since independence, Indian policymakers have attempted to address environmental problems by passing a number of rules and regulations as per the vision of the constitution and in response to the requirement of time. However, due to the prevalent poverty and the developmental compulsions of the nation, environment and its protection was not a priority of the government till the end of the 1960s. But, the 1972 Stockholm Conference on Human Environment brought a marked shift in India’s approach to environmental issues. The conference proved to be a turning point in India’s perception on environment and facilitated the creation of the National Committee on Environmental Planning and Co-ordination (NCEPC) in 1972. The NCEPC triggered a rise in environmental legislation, beginning with the Water (Prevention and Control of Pollution) Act of 1974, which provided for the creation of Pollution Control Boards for the control of water pollution at national and state levels and empowered them to enforce the law. The boards were later empowered to deal with air pollution by Air (Prevention and Control of Pollution) Act of 1981 and acted as regulatory mechanisms to environmental protection. This article primarily deals with the role of the Central Pollution Control Board as a regulatory authority to environmental protection and regulations in India.

scholarly journals POLLUTION MANAGEMENT THROUGH INTERNET OF THINGS: A SUBSTANTIAL SOLUTION FOR SOCIETY

2019 ◽  
Vol 7 (5) ◽  
pp. 1231-1237 ◽  
Author(s):  
Gulbir Singh ◽  
Gautam Kumar ◽  
Vivek Bhatnagar ◽  
Animesh Srivastava ◽  
Kumari Jyoti
Keyword(s):  
Pollution Control ◽  
Human Heart ◽  
Research Data ◽  
Pollution Level ◽  
Personal Health ◽  
Control Board ◽  
The Earth ◽  
Pollution Management ◽  
Central Pollution Control Board ◽  
A Site

Purpose of Study: In this age where population and industrialization have extended exponentially, contamination is a noteworthy emergency looked by humanity and essential measures ought to be taken to control it quickly. High levels of pollutants in the atmosphere, which are responsible for causing pollution that causes human heart problems, breathing and other all health problems to our society. This paper focused to provide a substantial solution to pollution in our society as a result of which major social, personal health and environmental pollution problems can be monitored and by taking effective steps they can be reduced. Methodology: The proposed framework is an IOT unit for handling these issues, including powerful use of the different sensor, to capture the estimations of various sorts of toxins in the earth and show insights on a site which can be gotten to by all clients for nothing. The research data is collected from the different sensors installed at different locations in our surroundings. After collecting data from sensors, a comparative study of data is carried out with the standards provided by the Central Pollution Control Board (CPCB). Results: The proposed system helps to reduce the pollution in our environment and as a result of which pollution can be reduced by taking major steps towards it. Application/Implications: The framework we are proposing is a propelled answer for observing the ecological contamination at a specific spot and make data available for each person. Novelty/originality of the study: Our proposed system ensures that pollution which ultimately causes health, environmental and other social problems can be tracked from time to time and each and every person in the society can track and check pollution level in their surroundings.  

scholarly journals Assessment of Phenolic Compounds in the Surface Waters of Godavari Canal, Andhra Pradesh, India

2015 ◽  
Vol 10 (1) ◽  
pp. 338-342 ◽  
Author(s):  
P Kumar ◽  
M Pacha
Keyword(s):  
Phenolic Compounds ◽  
Surface Waters ◽  
Pollution Control ◽  
Andhra Pradesh ◽  
Sampling Method ◽  
Control Board ◽  
Grab Sampling ◽  
Sampling Locations ◽  
Significant Difference ◽  
Central Pollution Control Board

The present study was intended to determine the concentrations of phenolic compounds in surface waters of Godavari canal by molecular spectrophotometry. Samples were collected from fifteen sampling stations using grab sampling method for a period of four months (from November to February) at 10 day intervals. Total phenols in water samples were determined using molecular spectrophotometry after distillation, complexation with 4-aminoantipyrine and extraction into chloroform. The concentration of phenolic compounds was reported in the range of 80-179 mg/lit, well within the limits considering the earlier reports in the literature and the standards prescribed by Central Pollution Control Board (CPCB) of India. Relatively higher levels of phenolic compounds (100-179 mg/lit) were reported in nine out of fifteen sampling locations. Statistical analysis showed that there is a significant difference in the concentrations of phenolic compounds in the month of November with respect to January (at p = 0.05) and November with respect to February (at p < 0.05).

Role of Particulate Matter on Air Quality Assessment of Delhi

2020 ◽  
pp. 63-78
Author(s):  
Sanjoy Maji ◽  
Sirajuddin Ahmed ◽  
Santu Ghosh ◽  
Saurabh Kumar Garg ◽  
Tariq Sheikh
Keyword(s):  
Particulate Matter ◽  
Air Quality ◽  
Quality Assessment ◽  
Air Quality Assessment

scholarly journals Analysis of the Air Quality and the Effect of Governance Policies in China’s Pearl River Delta, 2015–2018

Atmosphere ◽  
2019 ◽  
Vol 10 (7) ◽  
pp. 412 ◽  
Author(s):  
Hao Gao ◽  
Weixin Yang ◽  
Yunpeng Yang ◽  
Guanghui Yuan
Keyword(s):  
Air Pollution ◽  
Air Quality ◽  
Pollution Control ◽  
Pearl River Delta ◽  
River Delta ◽  
Pearl River ◽  
Air Pollution Control ◽  
Control Policies ◽  
Air Quality Assessment ◽  
The Pearl River

The evaluation of China’s air pollution and the effectiveness of its governance policies is currently a topic of general concern in the academic community. We have improved the traditional evaluation method to construct a comprehensive air quality assessment model based on China’s major air pollutants. Using the daily air pollutant data of 2015–2018, we calculated and analyzed the monthly air quality of nine cities in the Pearl River Delta of China, and conducted a comparative study on the effect of the air pollution control policies of the cities in the Pearl River Delta. We found that the air quality control policies in those nine cities were not consistent. Specifically, the pollution control policies of Guangzhou and Foshan have achieved more than 20% improvement. The pollution control policies of Dongguan and Zhaoqing have also achieved more than 10% improvement. However, due to the relative lag of the formulation and implementation of air pollution control policies, the air quality of Jiangmen, Zhuhai and Zhongshan has declined. Based on the analysis of the air quality assessment results and the effects of governance policies in each city during the study period, we propose suggestions for further improvement of the effectiveness of air pollution control policies in the region.

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