Geo-visualizing the hotspots of smog-induced health effects in district Gujranwala, Pakistan: a community perspective

Environmental Monitoring and Assessment, Год журнала: 2024, Номер 196(5)

Опубликована: Апрель 17, 2024

Язык: Английский

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The interplay between air pollution, built environment, and physical activity: Perceptions of children and youth in rural and urban India

Health & Place, Год журнала: 2023, Номер 85, С. 103167 - 103167

Опубликована: Дек. 20, 2023

Язык: Английский

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Appraisal of polycyclic aromatic hydrocarbons (PAHs) in indoor dust of Eastern Nigeria and its implications in the COVID-19 years

Journal of Hazardous Materials Advances, Год журнала: 2024, Номер 14, С. 100424 - 100424

Опубликована: Март 28, 2024

The risk assessment of PAHs in settled indoor dusts from different localities Awka, Ekwulobia, and Rumuodomaya-Ogale, Eastern Nigeria, were investigated. Settled dust samples (n = 144) collected the windows floor using brush analysed for with GC- FID. Dust showed higher total concentrations than order; Rumuodomaya-Ogale > Ekwulobia Awka. 3- 4-ring dominant window Awka all months, while 3-ring compound Ekwulobia. PAH a significant difference across months (p<0.05). In 3, 4, 5-ring supersede dust. This that is major sink 3-5-ring PAHs. compounds; BaA, DahA, Ant, BaP, DBA contributors to benzo(a)pyrene as toxicity equivalence (BaPTEQ) values incremental life cancer was < 1.0 × 10−04 study area; hence, increased activities during COVID-19 lockdown had no effect on human health populace.

Язык: Английский

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Influence of Wind Flows on Surface O3 Variation over a Coastal Province in Southeast China

Atmosphere, Год журнала: 2024, Номер 15(3), С. 262 - 262

Опубликована: Фев. 22, 2024

Surface ozone (O3) is influenced not only by anthropogenic emissions but also meteorological factors, with wind direction being one of the most overlooked factors. Here, we combine observational data both O3 and flow to compare variation in surface between coastal inland regions Fujian, a province southeast coast China complicated topography. We further conduct numerical simulation using global chemical transport model, GEOS-Chem, interpret results, explore linkages these variations flows, identify dominant processes for occurrence high that varies flows. The results from observations over 2015–2021 suggest that, regions, concentrations show strong dependence on changes. On average, during daytime, when southeasterly winds prevail, mean reaches 83.5 μg/m3, which 5.0 μg/m3 higher than its baseline values (the concentrations), while northwesterly tend reduce 6.4 μg/m3. positive anomalies are autumn summer spring winter. During nighttime, onshore northeasterly associated enhanced levels, likely due airmass containing less NO2, alleviating titration effects. Over however, sensitive GEOS-Chem simulations prevailing southwesterly lead anomaly reactions suggesting photochemical production rates. Furthermore, aid transporting more outer into jointly elevated dominates. When affected flows different directions, reaction do exhibit significant differences regarding their impact O3. This could be reasons difference distribution regions. study help deepen our understanding pollution providing an effective warning high-O3 episodes.

Язык: Английский

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Source apportionment and wet scavenging ability of atmospheric black carbon during haze in Northeast China

Environmental Pollution, Год журнала: 2024, Номер 357, С. 124470 - 124470

Опубликована: Июнь 29, 2024

Язык: Английский

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Geographical variability of ultrafine particle concentrations in urban and background regions in India

Urban Climate, Год журнала: 2024, Номер 56, С. 102066 - 102066

Опубликована: Июль 1, 2024

Язык: Английский

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Advanced Statistical Analysis of Air Quality and its Health Impacts in India: Quantifying Significance by Detangling Weather-Driven Effects

Heliyon, Год журнала: 2025, Номер 11(2), С. e41762 - e41762

Опубликована: Янв. 1, 2025

Air quality has emerged as a significant concern due to its direct impact on human health. Over recent decades, India witnessed marked deterioration in air rising anthropogenic emissions and climate change. The COVID-19 lockdown offered unique opportunity examine pollutant reductions under restricted activities. This study conducted long-term analysis of five major Indian cities-Delhi, Kolkata, Bengaluru, Hyderabad, Visakhapatnam-by analysing variations PM2.5, PM10, NOx, NH3, SO2, CO, O3, incorporating de-weathering strategy isolate meteorological influences. In Delhi, we observed PM10 (92.50-136.70 μg/m³), NOx (62.13-151.91 ppb), CO (0.53-0.88 mg/m³), which shifted health risks from the 'extreme' 'low' category. Visakhapatnam also experienced notable declines levels (7.50-17.13 ppb). Conversely, Hyderabad exhibited no reductions, AQHI increased (+0.97) concentrations. Ozone concentrations showed increase across cities, attributed VOC-limited effects. revealed that variability long-range transport airmass played critical roles shaping These findings highlight complexity urban dynamics underscore benefits emission for public

Язык: Английский

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Unintended environmental sustainability ramifications of US sanctions

International Political Science Review, Год журнала: 2025, Номер unknown

Опубликована: Апрель 18, 2025

This study examines the environmental impacts of US sanctions on Iranian companies from 2013 to 2023, finding significant increases in air pollution, energy consumption and industrial waste. Although corporate governance social responsibility practices offer some mitigation, they do not fully offset negative effects. However, community capital completely neutralizes damage. research contributes public policy discourse by emphasizing complex unintended consequences sustainability.

Язык: Английский

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Morphology and health risk assessment of potential toxic elements in size segregated PM at traffic intersection in Northern India

Journal of Trace Elements and Minerals, Год журнала: 2023, Номер 4, С. 100074 - 100074

Опубликована: Май 25, 2023

The current research attempted to evaluate the concentrations of PM in size segregation by analysing metal content and its health effect on human beings at traffic junction. Higher levels (PM2.5–1.0 PM1.0–0.5) were observed (418.55 µg/m3, 442.65 µg/m3) during winter season while monsoon season, it was recorded as (75.54 65.64 µg/m3). Overall for PM2.5–1.0 PM1.0–0.5 reported be (39.01 (29.84 season. A morphological study also evaluated with source identification. Al, Ca, Fe, Mg, Mn found crustal elements, whereas Cd, Cr, Cu, Zn, Pb highly enriched. hazard Quotient values higher comparison safe limit which has adverse effects health. 1.95 HQ 1.30 respectively, showed worry from smaller particles humans. Adults' Lifetime cancer risk (ELCR) greater (0.0007) than children's (0.0002). trend carcinogenicity both segments Cr(VI)>Pb>Ni. ELCR >PM2.5–1.0. average carcinogenic factor value revealed two times more USEPA's authorized level (1 × 10−6) particles, according data, are harmful or have a values.

Язык: Английский

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Sources and composition of elemental carbon during haze events in North China by a high time-resolved study

The Science of The Total Environment, Год журнала: 2023, Номер 907, С. 168055 - 168055

Опубликована: Окт. 27, 2023

Язык: Английский

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