scholarly journals Air Pollution

2020 ◽  
Vol 13 (2) ◽  
Author(s):  
Ramyadevi Ravindrane
Keyword(s):  
Air Pollution ◽  
Healthcare Professionals ◽  
Urban Environments ◽  
Morbidity And Mortality ◽  
Large Cities ◽  
Pollution Levels

This article describes the battle with air pollution in two large cities, London and Delhi. Air pollution is a major cause of morbidity and mortality across the globe, particularly affecting those in large, urban environments. Action has been take to reduce pollution levels and some improvement have been seen, but not to a significant enough degree. We as healthcare professionals have a responsibility to advocate for greater change to be made.

scholarly journals Analysis on the Effect of the Mobility of Combustion Vehicles in the Environment of Cities and the Improvement in Air Pollution in Europe: A Vision for the Awareness of Citizens and Policy Makers

Land ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 184
Author(s):  
Javier Cárcel-Carrasco ◽  
Manuel Pascual-Guillamón ◽  
Fidel Salas-Vicente
Keyword(s):  
Air Pollution ◽  
Road Traffic ◽  
Urban Environments ◽  
Transport Systems ◽  
Sustainable Transport ◽  
Policy Makers ◽  
Indirect Measure ◽  
Large Cities ◽  
Combustion Gases ◽  
Short Time

Today, the design and remodeling of urban environments is being sought in order to achieve green, healthy, and sustainable cities. The effect of air pollution in cities due to vehicle combustion gases is an important part of the problem. Due to the indirect effect caused by the Covid-19 pandemic, political powers in Europe have imposed confinement measures for citizens by imposing movement restrictions in large cities. This indirect measure has given us a laboratory to show how the reduction in vehicle circulation affects in a short time the levels of air pollution in cities. Therefore, this article analyzes the effect in different European cities such as Milan, Prague, Madrid, Paris, and London. These cities have been chosen due to their large amount of daily road traffic that generates high levels of pollution; therefore, it can clearly show the fall in these pollutants in the air in the analyzed period. The results shown through this study indicate that the reduction in combustion vehicles greatly affects the levels of pollution in different cities. In these periods of confinement, there was an improvement in air quality where pollutant values dropped to 80% compared to the previous year. This should serve to raise awareness among citizens and political powers to adopt measures that induce sustainable transport systems.

STATISTICAL METHODS FOR THE ASSESSMENT OF AIR POLLUTION OF JHANSI CITY, UTTAR PRADESH, INDIA

2018 ◽  
Vol 24 (1) ◽  
Author(s):  
V. S. CHAUHAN ◽  
BHANUMATI SINGH ◽  
SHREE GANESH ◽  
JAMSHED ZAIDI
Keyword(s):  
Air Pollution ◽  
Uttar Pradesh ◽  
Ambient Air ◽  
Ambient Air Pollution ◽  
Base Line ◽  
Multivariate Statistical ◽  
Large Cities ◽  
Governmental Organizations ◽  
Non Governmental Organizations ◽  
The Status

Studies on air pollution in large cities of India showed that ambient air pollution concentrations are at such levels where serious health effects are possible. This paper presents overview on the status of air quality index (AQI) of Jhansi city by using multivariate statistical techniques. This base line data can help governmental and non-governmental organizations for the management of air pollution.

scholarly journals Daily air pollution levels and acute asthma in southern Sweden

1998 ◽  
Vol 12 (4) ◽  
pp. 900-905 ◽  
Author(s):  
B. Forsberg ◽  
N. Stjernberg ◽  
R. Linné ◽  
B. Segerstedt ◽  
S. Wall
Keyword(s):  
Air Pollution ◽  
Acute Asthma ◽  
Southern Sweden ◽  
Pollution Levels

Urban Transportation Planning for Air Quality Management: Case Study in Delhi, India, of Role of Social and Economic Costs in Welfare Maximization of Mobility Choice

2002 ◽  
Vol 1817 (1) ◽  
pp. 42-49 ◽  
Author(s):  
Karolin Kokaz ◽  
Peter Rogers
Keyword(s):  
Air Pollution ◽  
Growth Rates ◽  
Urban Areas ◽  
Travel Demand ◽  
Urban Air Pollution ◽  
Sustainable Transportation ◽  
Transport Sector ◽  
Large Cities ◽  
Environmental Goals ◽  
Management Case Study

Recent economic expansion and population growth in developing countries have had a big impact on the development of large cities like Delhi, India. Accompanied by Delhi’s rapid spatial growth over the last 25 years, urban sprawl has contributed to increased travel. The vehicle fleet projected at current growth rates will result in more than 13 million vehicles in Delhi in 2020. Planning and managing such a rapidly growing transport sector will be a challenge. Choices made now will have effects lasting well into the middle of the century. With such rapid transport growth rates, automobile emissions have become the fastest increasing source of urban air pollution. In India, most urban areas, including Delhi, already have major air pollution problems that could be greatly exacerbated if growth of the transport sector is managed unwisely. The transport plans designed to meet such large increases in travel demand will have to emphasize the movement of people, not vehicles, for a sustainable transportation system. Therefore, a mathematical model was developed to estimate the optimal transportation mix to meet this projected passenger-km demand while satisfying environmental goals, reducing congestion levels, and improving system and fuel efficiencies by exploiting a variety of policy options at the minimum overall cost or maximum welfare from transport. The results suggest that buses will continue to satisfy most passenger transport in the coming decades, so planning done in accordance with improving bus operations is crucial.

A case study of noise pollution levels during the restrictions period due to COVID-19.

2021 ◽  
Vol 263 (6) ◽  
pp. 206-214
Author(s):  
David Montes-González ◽  
Juan Miguel Barrigón-Morillas ◽  
Ana Cristina Bejarano-Quintas ◽  
Manuel Parejo-Pizarro ◽  
Guillermo Rey-Gozalo ◽  
...  
Keyword(s):  
Noise Pollution ◽  
Urban Environments ◽  
Control Measures ◽  
Acoustic Measurements ◽  
Pollution Levels ◽  
The World ◽  
The Impact ◽  
The City

The pandemic of coronavirus disease (COVID-19) led to the need for drastic control measures around the world to reduce the impact on the health of the population. The confinement of people in their homes resulted in a significant reduction in human activity at every level (economic, social, industrial, etc.), which was reflected in a decrease in environmental pollution levels. Studying the evolution of parameters, such as the level of environmental noise caused by vehicle traffic in urban environments, makes it possible to assess the impact of this type of measure. This paper presents a case study of the acoustic situation in Cáceres (Spain) during the restriction period by means of long-term acoustic measurements at various points of the city.

The Relationship Between Atmospheric Boundary Layer Structure, Brown Haze, and Air Pollution in Auckland, New Zealand

2021 ◽  
Author(s):  
Hannah Marley ◽  
Kim Dirks ◽  
Andrew Neverman ◽  
Ian McKendry ◽  
Jennifer Salmond
Keyword(s):  
Boundary Layer ◽  
Air Pollution ◽  
New Zealand ◽  
Atmospheric Boundary Layer ◽  
Boundary Layers ◽  
Layer Structure ◽  
High Surface ◽  
Residual Layer ◽  
Pollution Levels ◽  
Haze Formation

<p><span><span>A brown air pollution haze that forms over some international cities during the winter has been found to be associated with negative health outcomes and high surface air pollution levels. Previous research has demonstrated a well-established link between the structure of the atmospheric boundary layer (ABL) and surface air quality; however, the degree to which the structure of the ABL influences for formation of local-</span></span><span><span>scale</span></span><span><span> brown haze is unknown. Using continuous ceilometer data covering seven consecutive winters, we investigate the influence of the structure of the ABL in relation to surface air pollution and brown haze formation over an urban area of complex coastal terrain in the Southern Hemisphere city of Auckland, New Zealand. Our results suggest the depth and evolution of the ABL has a strong influence on severe brown haze formation. When days with severe brown haze are compared with those when brown haze is expected but not observed (based on favorable meteorology and high surface air pollution levels), days with severe brown haze are found to coincide with significantly shallower daytime convective boundary layers (~ 48% lower), and the nights preceding brown haze formation are found to have significantly shallower nocturnal boundary layers (~ 28% lower). On severe brown haze days the growth rate during the morning transition phase from a nocturnal boundary layer to a convective daytime boundary layer is found to be significantly reduced (70 m h</span></span><sup><span><span>-1</span></span></sup><span><span>) compared to days on which brown haze is expected but not observed (170 m h</span></span><sup><span><span>-1</span></span></sup><span><span>). Compared with moderate brown haze, severe brown haze conditions are found to be associated with a significantly higher proportion of days with a distinct residual layer present in the ceilometer profiles, suggesting the entrainment of residual layer pollutants may contribute to the severity of the haze. This study illustrates the complex interaction between the ABL structure, air pollution, and the presence of brown haze, and demonstrates the utility of a ceilometer instrument in understanding and predicting the occurrence of brown haze events. </span></span></p>

Use of face masks and allergic rhinitis from ragweed: why mention only total pollen count and not air pollution levels?

2021 ◽  
Author(s):  
Gennaro Liccardi ◽  
Matteo Martini ◽  
Maria Beatrice Bilò ◽  
Manlio Milanese ◽  
Paola Rogliani
Keyword(s):  
Air Pollution ◽  
Allergic Rhinitis ◽  
Pollen Count ◽  
Pollution Levels ◽  
Total Pollen

Preliminary hazard assessment of air pollution levels in Nizwa, Rusayl and Sur in Oman

2021 ◽  
pp. 1-9
Author(s):  
Patrick Amoatey ◽  
Hamid Omidvarborna ◽  
Mahad Said Baawain ◽  
Issa Al-Harthy ◽  
Abdullah Al-Mamun ◽  
...  
Keyword(s):  
Air Pollution ◽  
Hazard Assessment ◽  
Pollution Levels
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