Increased tropospheric ozone levels as a public health issue during COVID-19 lockdown and estimation the related pulmonary diseases

Atmospheric Pollution Research, Год журнала: 2022, Номер 13(12), С. 101600 - 101600

Опубликована: Ноя. 21, 2022

Язык: Английский

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Air quality in a bus depot and a way of improving it: effect of using air purifiers

Environmental Pollution, Год журнала: 2025, Номер unknown, С. 126310 - 126310

Опубликована: Апрель 1, 2025

Язык: Английский

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Trends in PM10 and PM2.5 air pollution and related health risk in Tehran over the last two decades

Urban Climate, Год журнала: 2025, Номер 61, С. 102450 - 102450

Опубликована: Май 16, 2025

Язык: Английский

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Quantification of Ecosystem Services from Urban Mangrove Forest: A Case Study in Angke Kapuk Jakarta

Forests, Год журнала: 2023, Номер 14(9), С. 1796 - 1796

Опубликована: Сен. 3, 2023

Coastal urban areas in Indonesia commonly encounter complex environmental problems, including bad air pollution and high risk of flooding due to sea level rise land subsidence. The existence mangrove forests potentially contributes mitigating the problems. Preserving coastal requires continuous support from all stakeholders, which can be strengthened by good understanding on comprehensive benefits provided these ecosystems. This study aims quantify key ecosystem services forest, with a case Angke Kapuk Jakarta. Four types were quantified, i.e., carbon storage, pollutant absorption, microclimate regulation, nature recreation. A vegetation survey was conducted 30 sample plots collect data for covers above-ground carbon, below-ground deadwood. absorption six pollutants (CO, NO2, O3, SO2, PM10, PM2.5) analysed using i-Tree Eco model. Field measurements temperature humidity, as well interviews 99 visitors, performed analyse regulation. found quantity storage within trees deadwood area (111.6 tonnes C/ha) amounts absorbed (11.3 tonnes/year). Mangrove effectively regulated conditions, indicated significant difference average daily humidity between inside outside forest. Meanwhile, number visitors benefiting its recreation has fluctuated during last five years, an 138,550 people per year. We discuss implications findings this forest management, how integrate quantification into preservation rehabilitation.

Язык: Английский

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City Wind Impact on Air Pollution Control for Urban Planning with Different Time-Scale Considerations: A Case Study in Chengdu, China

Atmosphere, Год журнала: 2023, Номер 14(7), С. 1068 - 1068

Опубликована: Июнь 24, 2023

Economic development and fast growing urbanization in China have caused severe air pollution, with frequent pollution episodes endangering the health of inhabitants disturbing social activities, as an expanding metropolis, Chengdu has suffered ever since. The concentration variations main pollutants, such PM10, PM2.5 NO2, often show periodicity because meteorological impact anthropic display orientation discrepancies due to influences wind speed (WS), frequency pollutant sources. These features complicated mechanisms deepened difficulty control evaluation. WS significant on concentrations, quantifying influence which is high significance provides sustainable foundations for alleviation strategies. Different time-scale cycles (i.e., Diurnal, weekly, seasonal annual), along WS, frequency, spatial orientations urban areas, were analyzed this paper. Results that diurnal, annual remarkable, weekly cycle obvious by adding 16 orientations. direct impacts pollutants varying range 1.5–2.5 m/s, a remarkable diffusion effect once above 2.5 m/s. Over heavy hours transitional seasons, had more whereas not factor variations. For Chengdu, northeast suitable construct panel while pollutions northwest southwest below 1.5 north-northwest was worst. This work can provide guidance reference planning optimization environment protection cities quality considerations impacted city wind.

Язык: Английский

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Protective effect of 3-bromo-4,5-dihydroxybenzaldehyde against PM2.5-induced cell cycle arrest and autophagy in keratinocytes

Molecules and Cells, Год журнала: 2024, Номер 47(5), С. 100066 - 100066

Опубликована: Апрель 26, 2024

Particulate matter 2.5 (PM2.5) poses a serious threat to human health and is responsible for respiratory disorders, cardiovascular diseases, skin disorders. 3-Bromo-4,5- dihydroxybenzaldehyde (3-BDB), abundant in marine red algae, exhibits anti-inflammatory, antioxidant, anti-diabetic activities. In this study, we investigated the protective mechanisms of 3-BDB against PM2.5-induced cell cycle arrest autophagy keratinocytes. Intracellular reactive oxygen species (ROS) generation, DNA damage, arrest, intracellular Ca2+ level, activation were tested. was found restore proliferation viability which reduced by PM2.5. Furthermore, ROS levels, attenuated arrest. Moreover, ameliorated increases cellular level activation. While PM2.5 treatment growth viability, these restored with inhibitor bafilomycin A1 or 3-BDB. The findings indicate that ameliorates death caused via inhibiting autophagy. Hence, can be exploited as preventive/therapeutic agent impairment.

Язык: Английский

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COVID-19 Outbreak Related to PM10, PM2.5, Air Temperature and Relative Humidity in Ahvaz, Iran

Dr Sulaiman Al Habib Medical Journal, Год журнала: 2022, Номер 4(4), С. 182 - 195

Опубликована: Ноя. 30, 2022

Abstract In this study, we assessed several points related to the incidence of COVID-19 between March 2020 and 2021 in Petroleum Hospital Ahvaz (Iran) by analyzing data from patients referred hospital. We found that 57.5% infected referrals were male, 61.7% deaths occurred subjects over 65 years age, only 2.4% younger (< 30 old). Analysis showed mean PM 10 2.5 concentrations correlated ( r = 0.547, P < 0.05, 0.609, respectively) positive chest CT scans 0.597, 0.541, 0.05 respectively). observed a high daily air temperature (30–51 °C) relative humidity (60–97%) led significant reduction COVID-19. The highest number obtained June for ranging 38 °C 49 11 15 °C, respectively. A negative correlation was detected cases − 0.320, 0.05) 0.384, 0.05). Ahvaz, 10–28 19–40% are suitable spread coronavirus. with at lag3 0.42) lag0 scan 0.56). For humidity, correlations day 0 (lag0). During lockdown (22 21 April 2020), (29.6%), (36.9%) Air Quality Index (33.3%) when compared previous month. pandemic period (2020–2021), annual (27.3%) (17.8%) reduced 2015–2019 period.

Язык: Английский

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Risk assessment of exposure to the Middle Eastern dust storms in Iran

Human and Ecological Risk Assessment An International Journal, Год журнала: 2023, Номер 29(3-4), С. 743 - 756

Опубликована: Янв. 30, 2023

The aims of this study were to i) assess the relationship between COVID-19 cases with PM10 concentration and ii) investigation premature deaths due cardiovascular (M-CVD) respiratory (M-RD) diseases in three classification levels (PM10<50µg m−3 normal days, 50–200 µg dusty >200 MED storm), by using daily averages concentrations. number M-CVD M-RD estimated concentration-response model, per 105 people during 2017 2021. results showed that 187, 183, 163, 215, 206 days observed concentrations lower than 50 2021, 178, 180, 200, 150, 149 subtotal exceeding from WHO guideline (50 m−3), respectively. A positive correlation (r2=0.33, p < 0.05) was found be mean (r = 0.589, 0.046). Our findings highest among exposed at PM10≤ 200 μg m−3) 2019. total 2021 11.78 12.2, 18.25 17.4, 22.29 23.78, 10.33 7.6, 10.37 9.95 people, respectively which 31.48% health effects related more m−3.

Язык: Английский

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Forecasting Hourly Ozone Concentration Using Functional Time Series Model—A Case Study in the Coastal Area of Bangladesh

Environmental Modeling & Assessment, Год журнала: 2023, Номер 29(1), С. 125 - 134

Опубликована: Сен. 12, 2023

Язык: Английский

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Accurate and efficient prediction of atmospheric PM1, PM2.5, PM10, and O3 concentrations using a customized software package based on a machine-learning algorithm

Chemosphere, Год журнала: 2024, Номер 368, С. 143752 - 143752

Опубликована: Ноя. 1, 2024

Язык: Английский

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