scholarly journals Air Pollution and Respiratory Morbidity in an urban Area of Nigeria

2012 ◽  
Vol 1 (1) ◽  
pp. 001-006
Author(s):  
T.F. Ediagbonya ◽  
◽  
A.E. Tobin
Keyword(s):  
Air Pollution ◽  
Urban Area ◽  
Respiratory Morbidity

scholarly journals Air Pollution and Respiratory Morbidity in an urban Area of Nigeria

2013 ◽  
Vol 2 (1) ◽  
pp. 010-015 ◽  
Author(s):  
T.F. Ediagbonya ◽  
◽  
A.E. Tobin ◽  
Keyword(s):  
Air Pollution ◽  
Urban Area ◽  
Respiratory Morbidity

scholarly journals Impacts of primary emissions and secondary aerosol formation on air pollution in an urban area of China during the COVID-19 lockdown

2021 ◽  
Vol 150 ◽  
pp. 106426
Author(s):  
Jie Tian ◽  
Qiyuan Wang ◽  
Yong Zhang ◽  
Mengyuan Yan ◽  
Huikun Liu ◽  
...  
Keyword(s):  
Air Pollution ◽  
Urban Area ◽  
Aerosol Formation ◽  
Secondary Aerosol ◽  
Primary Emissions

Impact of meteorological parameters on relation between aerosol optical indices and air pollution in a sub-urban area

2014 ◽  
Vol 68 ◽  
pp. 46-57 ◽  
Author(s):  
M. Khoshsima ◽  
F. Ahmadi-Givi ◽  
A.A. Bidokhti ◽  
S. Sabetghadam
Keyword(s):  
Air Pollution ◽  
Urban Area ◽  
Meteorological Parameters

scholarly journals The Air Quality Perception of Residents in the Metropolitan Zone of Acapulco Who Live Around Intersections with Intense Traffic

Environments ◽  
2020 ◽  
Vol 7 (3) ◽  
pp. 21
Author(s):  
Alfredo Ricardo Zárate Valencia ◽  
Maximino Reyes Umaña ◽  
Hilda Janet Arellano Wences ◽  
Antonio Alfonso Rodríguez Rosales ◽  
Columba Rodríguez Alviso ◽  
...  
Keyword(s):  
Air Pollution ◽  
Air Quality ◽  
Urban Area ◽  
Environmental Problem ◽  
Pollutant Concentration ◽  
Degree Of Contamination ◽  
Quality Perception ◽  
Global Environmental ◽  
Grouping Method ◽  
Metropolitan Zone

Air pollution is a global environmental problem that affects the population. This work demonstrates the perception of air quality by the population of the urban area of the municipality of Acapulco, Guerrero, Mexico. To meet the objective, a survey of 36 questions was applied to a sample of 382 people living in the main crossing points of vehicles, where there is more traffic and more severe pollutant concentration problems. We decided to apply the grouping method within a radius of 500 m around the selected intersections, where 95% of the respondents are aware that the air they breathe has a certain degree of contamination.

scholarly journals Strategies of method selection for fine-scale PM<sub>2.5</sub> mapping in an intra-urban area using crowdsourced monitoring

2019 ◽  
Vol 12 (5) ◽  
pp. 2933-2948 ◽  
Author(s):  
Shan Xu ◽  
Bin Zou ◽  
Yan Lin ◽  
Xiuge Zhao ◽  
Shenxin Li ◽  
...  
Keyword(s):  
Air Pollution ◽  
Air Quality ◽  
Urban Area ◽  
Significant Risk ◽  
Pollution Monitoring ◽  
Fine Scale ◽  
Method Selection ◽  
Sampling Campaign ◽  
Selection For ◽  
Monitoring Stations

Abstract. Fine particulate matter (PM2.5) is of great concern to the public due to its significant risk to human health. Numerous methods have been developed to estimate spatial PM2.5 concentrations in unobserved locations due to the sparse number of fixed monitoring stations. Due to an increase in low-cost sensing for air pollution monitoring, crowdsourced monitoring of exposure control has been gradually introduced into cities. However, the optimal mapping method for conventional sparse fixed measurements may not be suitable for this new high-density monitoring approach. This study presents a crowdsourced sampling campaign and strategies of method selection for 100 m scale PM2.5 mapping in an intra-urban area of China. During this process, PM2.5 concentrations were measured by laser air quality monitors through a group of volunteers during two 5 h periods. Three extensively employed modelling methods (ordinary kriging, OK; land use regression, LUR; and regression kriging, RK) were adopted to evaluate the performance. An interesting finding is that PM2.5 concentrations in micro-environments varied in the intra-urban area. These local PM2.5 variations can be easily identified by crowdsourced sampling rather than national air quality monitoring stations. The selection of models for fine-scale PM2.5 concentration mapping should be adjusted according to the changing sampling and pollution circumstances. During this project, OK interpolation performs best in conditions with non-peak traffic situations during a lightly polluted period (holdout validation R2: 0.47–0.82), while the RK modelling can perform better during the heavily polluted period (0.32–0.68) and in conditions with peak traffic and relatively few sampling sites (fewer than ∼100) during the lightly polluted period (0.40–0.69). Additionally, the LUR model demonstrates limited ability in estimating PM2.5 concentrations on very fine spatial and temporal scales in this study (0.04–0.55), which challenges the traditional point about the good performance of the LUR model for air pollution mapping. This method selection strategy provides empirical evidence for the best method selection for PM2.5 mapping using crowdsourced monitoring, and this provides a promising way to reduce the exposure risks for individuals in their daily life.

scholarly journals Impact of Air Pollution on the Health of the Population in Parts of the Czech Republic

2020 ◽  
Vol 17 (18) ◽  
pp. 6454
Author(s):  
Radim J. Sram
Keyword(s):  
Air Pollution ◽  
Czech Republic ◽  
Environmental Protection Agency ◽  
Power Plants ◽  
Local Heating ◽  
The United States ◽  
Respiratory Morbidity ◽  
Surprising Result ◽  
The Czech Republic ◽  
The Impact

Thirty years ago, Northern Bohemia in the Czech Republic was one of the most air polluted areas in Europe. After political changes, the Czech government put forward a research program to determine if air pollution is really affecting human health. This program, later called the “Teplice Program”, was initiated in collaboration with scientists from the United States Environmental Protection Agency (US EPA). This cooperation made possible the use of methods on the contemporary level. The very high concentrations of sulphur dioxide (SO2), particulate matter of 10 micrometers or less (PM10), and polycyclic aromatic hydrocarbons (PAHs) present in the air showed, for the first time, the impact of air pollutants on the health of the population in mining districts: adverse pregnancy outcomes, the impact of air pollution on sperm morphology, learning disabilities in children, and respiratory morbidity in preschool children. A surprising result came from the distribution of the sources of pollution: 70% of PM10 pollution came from local heating and not from power plants as expected. Thanks to this result, the Czech government supported changes in local heating from brown coal to natural gas. This change substantially decreased SO2 and PM10 pollution and affected mortality, especially cardiovascular mortality.

scholarly journals Spatial Mapping of a Highly Non-Uniform Distribution of Particle-Bound PAH in a Densely Populated Urban Area

Atmosphere ◽  
2020 ◽  
Vol 11 (5) ◽  
pp. 496
Author(s):  
Kyung Hwan Kim ◽  
Kyung-Hwan Kwak ◽  
Jae Young Lee ◽  
Sung Ho Woo ◽  
Jong Bum Kim ◽  
...  
Keyword(s):  
Air Pollution ◽  
Exposure Assessment ◽  
Urban Area ◽  
Urban Areas ◽  
Air Pollutants ◽  
Personal Exposure ◽  
Exposure Level ◽  
Traffic Emission ◽  
Pollution Levels ◽  
Monitoring Procedure

In this work, a 2-D gridded air pollution map with a high resolution of 50 × 50 m2 was proposed to help the exposure assessment studies focusing on the association between air pollutants and their health effects. To establish a reliable air pollution map in a 2 × 2 km2 urban area, a mobile monitoring procedure and a data process were developed. Among the various vehicle-related air pollutants, the particle-bound polycyclic aromatic hydrocarbon (pPAH) was chosen as a sensitive indicator. The average pPAH concentration on major roads (293.1 ng/m3) was found to be 35 times higher than that at a background location (8.4 ng/m3). Based on the cell-based pPAH concentrations, the 50 × 50 m2 cells in the air pollution map were categorized into five pollution levels. The higher air pollution levels were generally shown by the cells close to the major traffic emission points. The proposed map can be used to make various policies regarding land use and traffic flow control in urban areas. Estimation of the personal exposure level to air pollutants is possible at a reliable location using the highly resolved 2-D gridded air pollution map in exposure assessment studies.

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