scholarly journals Nitrogen Deposition in the Greater Tehran Metropolitan Area

2001 ◽  
Vol 1 ◽  
pp. 261-265 ◽  
Author(s):  
Ali Salahi ◽  
Shirin Geranfar ◽  
Soudabeh A.A. Korori
Keyword(s):  
Air Pollution ◽  
Nitrogen Deposition ◽  
Metropolitan Area ◽  
Wet Deposition ◽  
Nitrate Ion ◽  
Significant Difference

An investigation of air pollution in the Tehran metropolitan area between 1992–2000 indicated that there are significant amounts of nitrate ion (NO3–), over 30 kg/ha/year, deposited as wet deposition, compared to 13 kg/ha/year in the Chitgar Parkland near the Tehran metropolitan area. The amount of NO3–in warm seasons is twofold that of cold seasons (see Fig. 1), and there was a significant difference between cold and warm seasons (Table 1). Annual wet deposition of ammonia (NH3) was 10 kg/ha/year in the Chitgar Parkland[1].

AWARENESS ABOUT INDOOR AIR POLLUTION IN GENERAL POPULATION OF RAWALPINDI AND ISLAMABAD

2018 ◽  
Vol 8 (2) ◽  
pp. 80-83
Author(s):  
Nadia Tariq ◽  
Tamkeen Jaffry ◽  
Rahma Fiaz ◽  
Abdul Majid Rajput ◽  
Sadaf Khalid
Keyword(s):  
Air Pollution ◽  
General Population ◽  
Indoor Air ◽  
Indoor Air Pollution ◽  
Economic Status ◽  
Educational Status ◽  
Epidemiological Studies ◽  
Cross Sectional Survey ◽  
Cross Sectional ◽  
Significant Difference

Background: Indoor air pollutants are increasingly being associated with respiratory illnesses leading to high degree of morbidity and mortality. There are not sufficient epidemiological studies from Pakistan which assess level of awareness of indoor air pollution resulting in respiratory diseases in population. Methods: This cross sectional survey was carried out on general population of Rawalpindi/Islamabad. Sample size was 223 study subjects selected by non-probability convenient sampling. Knowledge of the study subjects was determined with regard to indoor air pollution, its effects on health and different sources of indoor air pollution with the help of a questionnaire. The influence of age, gender, educational status and socio economic status on the level of awareness was also analyzed. Results: Out of total 223 participants, 115 were males and108 females. Participants aware of indoor air pollution were 91.5% and adequate awareness about its sources was 80.7%. Those who knew indoor air pollution is detrimental to health were 95.1%. Awareness about building construction dust as source of indoor air pollution was maximum (84.8%). There was significant difference in awareness among participants with different monthly incomes and educational status and also between males and females. Conclusion: This study concludes that general population of Rawalpindi/Islamabad has fairly good awareness about sources of indoor air pollution. Use of harmful material causing indoor air pollution should be limited or substituted with better ones where possible.

scholarly journals Subtle Changes or Dramatic Perceptions of Air Pollution in Sydney during COVID-19

Environments ◽  
2021 ◽  
Vol 8 (1) ◽  
pp. 2
Author(s):  
Peter Brimblecombe ◽  
Yonghang Lai
Keyword(s):  
Air Pollution ◽  
Air Quality ◽  
New South ◽  
Human Mobility ◽  
Ground Level ◽  
Physical Reality ◽  
Social Perceptions ◽  
Search Terms ◽  
South Wales ◽  
Significant Difference

The COVID-19 pandemic made it critical to limit the spread of the disease by enforcing human isolation, restricting travel and reducing social activities. Dramatic improvements to air quality, especially NO2, have often characterised places under COVID-19 restrictions. Air pollution measurements in Sydney in April 2019 and during the lockdown period in April 2020 show reduced daily averaged NO2 concentrations: 8.52 ± 1.92 and 7.85 ± 2.92 ppb, though not significantly so (p1~0.15) and PM2.5 8.91 ± 4.94 and 7.95 ± 2.64 µg m−3, again a non-significant difference (p1~0.18). Satellite imagery suggests changes that parallel those at ground level, but the column densities averaged over space and time, in false-colour, are more dramatic. Changed human mobility could be traced in increasing times spent at home, assessed from Google Mobility Reports and mirrored in decreased traffic flow on a major road, suggesting compliance with the restrictions. Electricity demand for the State of New South Wales was low under lockdown in early April 2020, but it recovered rapidly. Analysis of the uses of search terms: bushfires, air quality, haze and air pollution using Google Trends showed strong links between bushfires and pollution-related terms. The smoke from bushfires in late 2019 may well have added to the general impression of improved air quality during lockdown, despite only modest changes in the ground level measurements. This gives hints that successful regulation of air quality requires maintaining a delicate balance between our social perceptions and the physical reality.

scholarly journals Assessment on the Ozone Air Pollution in a Medium Metropolitan Area: Seville (Spain)

10.5772/18354 ◽  
2011 ◽  
Author(s):  
Jose A. ◽  
Antonio Lozano ◽  
Juan Contreras ◽  
Benito A. de la More
Keyword(s):  
Air Pollution ◽  
Metropolitan Area

scholarly journals Gene EBNA3C: Type of Infection by EBV (EBV1 and EBV2) Correlation With Clinical and Biochemical Parameters (AST, ALT and GGT) in Individuals With Infectious Mononucleosis in the Metropolitan Area of Belém, Pará, 2005-2016

2019 ◽  
Author(s):  
Talita Antonia Furtado Monteiro ◽  
Iran Barros Costa ◽  
Igor Brasil Costa ◽  
Thais Letícia dos Santos Corrêa ◽  
Beatriz Monteiro Rodrigues Coelho ◽  
...  
Keyword(s):  
Social Science ◽  
Infectious Mononucleosis ◽  
Metropolitan Area ◽  
Biochemical Parameters ◽  
Clinical Biochemistry ◽  
Clinical Signs ◽  
Cervical Lymphadenopathy ◽  
Metropolitan Region ◽  
Significant Difference ◽  
Biochemical Testing

Abstract Background: Two types of EBV (EBV1 and 2) have been shown to infect humans. This study aimed to detect the types of EBV that cause infectious mononucleosis and correlate these viral types with biochemical parameters (AST, ALT and GGT) in the metropolitan region of Belém from 2005 to 2016. Methods: A total of 76 cases of infectious mononucleosis were processed at the Instituto Evandro Chagas, Ananindeua, Brazil. PCR was used to analyze the EBNA3C region for the recognition of EBV types. Biochemical testing (AST, ALT and GGT) was performed by the COBAS INTEGRA clinical biochemistry PLUS 400 / ROCHE automatic analyzer. The data were evaluated using the Statistical Package for Social Science - SPSS 17.0 and GraphPadPrism 7.0 for Windows (GraphPad software, San Diego, CA, USA). Results: EBV1 infection was observed in 71.1% (54/76) of individuals, among whom those > 14 years constituted 66.7% (36/54); the average age was 23 years, and the number of women infected was higher (61.1% [33/54]) than that of men 38.9%[21/54]). The symptoms/clinical signs observed in infection by EBV1 were cervical lymphadenopathy in 64.8% (35/54), fever in 63% (34/54), headache and arthralgia in 20.3% (11/54), and exanthema in 18.5% (10/54). Infection by EBV2 was observed in only 17.1% (13/76) of cases. Coinfection by EBV1 and EBV2, most frequently showing symptoms of fever and cervical lymphadenopathy, occurred in 66.7% (6/9) and 55.6% (5/9) of individuals. Conclusion: EBV1 was predominant in 71% of clinical cases of infectious mononucleosis. The correlation of biochemical parameters in infection by EBV1, EBV2, and coinfection by EBV1/2 revealed a statistically significant difference in mean changes of EBV1 in individuals older than 14 years.

scholarly journals Industrial pollution related health problems among residents of a rural area in central Kerala

2021 ◽  
Author(s):  
Suchithra Erath Thadathil ◽  
Jaya Koothupalakkal Viswambharan ◽  
Alok Kanjhoor Premdas ◽  
Ashwin Raj
Keyword(s):  
Air Pollution ◽  
Health Effects ◽  
Rural Area ◽  
Odds Ratio ◽  
Skin Lesions ◽  
Control Group ◽  
Case Group ◽  
Cross Sectional ◽  
Adverse Health Effects ◽  
Significant Difference

Background: Air pollution leads to several health effects, the major systems affected were respiratory, dermatology, neurology and ophthalmology. This study is an attempt to find out various health effects of pollution, from a food factory to the nearby residents.Methods: A cross sectional comparative study was performed on 248 residents nearby a food factory, situated in rural area of Thrissur district and a comparative group of 266 participants taken 5km away from this factory.Results: Both the groups were comparable in socio-demographic profile except religion and occupation. There was no statistically significant difference (p>0.05) between the use of firewood in both the groups. The symptoms of major systems involved were respiratory (odds ratio 3.9, 95% CI 2.2 to 6.8), dermatological (odds ratio 18.3, 95% CI 8.3 to 40.7), neurological (odds ratio 13.5, 95% CI 4.1 to 44.7) and ophthalmological (odds ratio 5.9, 95% CI 2.6 to 13.6). The major symptoms complained by them were pruritus (32.7%), skin lesions (17.7%), breathlessness (16.9%), itching eye (13.3%) watering from eye (11.7%) and headache (11.3%). All these symptoms among the case group compared to control group were very high and these associations were highly statistically significant (p<0.001).Conclusions: This study showed an increased occurrence of adverse health effects among the individuals who were residing near the food factory. Therefore this study points out the possibility of environmental pollution (mainly air pollution) as a main factor for the increased prevalence of symptoms among those who reside nearby the factory.

scholarly journals Intersectionality of Age And Air Pollution On The Use of Medical Care: National Data From Taiwan

2021 ◽  
Author(s):  
Hung-Chieh Chang ◽  
Li-Ling Hsu ◽  
Wei-Liang Shih
Keyword(s):  
Air Pollution ◽  
Medical Care ◽  
Quality Index ◽  
Age Groups ◽  
The Elderly ◽  
National Data ◽  
Annual Average ◽  
Significant Difference ◽  
National Databases ◽  
Stratified Analysis

Abstract This study uses an intersectionality lens to understand the inequality of medical use at the intersection of age and air pollution. Using national databases from Taiwan, the results show that the increase of the level of air pollution and age is related to higher percentage of high medical use. Through stratified analysis, we found that there is no significant difference in medical use among different age groups in low AQI (Air Quality Index) areas, Yet, in areas with increasing amounts of polluted air, the elderly have a significantly higher percentage in frequent medical use. Our results show that the elderly people are more susceptible to air pollution, and suggest that, to protect their health and reduce the use of medical care, not only is there a need to reduce air pollution, but also maintain the annual average AQI level to under the value of 50.

scholarly journals Lacrimal Cytokines Assessment in Subjects Exposed to Different Levels of Ambient Air Pollution in a Large Metropolitan Area

PLoS ONE ◽  
2015 ◽  
Vol 10 (11) ◽  
pp. e0143131 ◽  
Author(s):  
Monique Matsuda ◽  
Rodolfo Bonatti ◽  
Mônica V. Marquezini ◽  
Maria L. B. Garcia ◽  
Ubiratan P. Santos ◽  
...  
Keyword(s):  
Air Pollution ◽  
Metropolitan Area ◽  
Ambient Air ◽  
Ambient Air Pollution ◽  
Large Metropolitan Area ◽  
Different Levels
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