Ground-level gaseous pollutants (NO₂, SO₂, and CO) in China: daily seamless mapping and spatiotemporal variations

Atmospheric chemistry and physics, Journal Year: 2023, Volume and Issue: 23(2), P. 1511 - 1532

Published: Jan. 26, 2023

Abstract. Gaseous pollutants at the ground level seriously threaten urban air quality environment and public health. There are few estimates of gaseous that spatially temporally resolved continuous across China. This study takes advantage big data artificial-intelligence technologies to generate seamless daily maps three major ambient pollutant gases, i.e., NO2, SO2, CO, China from 2013 2020 a uniform spatial resolution 10 km. Cross-validation between our observations illustrated high on basis for surface CO concentrations, with mean coefficients determination (root-mean-square errors) 0.84 (7.99 µg m−3), (10.7 0.80 (0.29 mg respectively. We found COVID-19 lockdown had sustained impacts pollutants, where recovered its normal in around 34th day after Lunar New Year, while SO2 NO2 rebounded more than 2 times slower due emissions residents' increased indoor cooking atmospheric oxidation capacity. Surface reached their peak annual concentrations 21.3 ± 8.8 m−3, 23.1 13.3 1.01 0.29 m−3 2013, then continuously declined over time by 12 %, 55 17 respectively, until 2020. The declining rates were prominent 2017 sharper reductions anthropogenic but have slowed down recent years. Nevertheless, people still suffer high-frequency risk exposure eastern China, almost World Health Organization (WHO) recommended short-term guidelines (AQG) since 2018, benefiting implemented stricter “ultra-low” emission standards. reconstructed dataset will benefit future (especially short-term) pollution environmental health-related studies.

Language: Английский

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Heat and Cardiovascular Mortality: An Epidemiological Perspective

Circulation Research, Journal Year: 2024, Volume and Issue: 134(9), P. 1098 - 1112

Published: April 25, 2024

As global temperatures rise, extreme heat events are projected to become more frequent and intense. Extreme causes a wide range of health effects, including an overall increase in morbidity mortality. It is important note that while there sufficient epidemiological evidence for heat-related increases all-cause mortality, on the association between cause-specific deaths such as cardiovascular disease (CVD) mortality (and its specific causes) limited, with inconsistent findings. Existing systematic reviews meta-analyses studies CVD have summarized available evidence. However, target audience mainly limited field environmental epidemiology. This overarching perspective aims provide professionals comprehensive overview recent how associated The rationale behind this broad better understanding effect will help optimize their plans adapt changes brought about by climate change events. To policymakers, would formulate targeted mitigation, strengthen early warning systems, develop adaptation strategies. Despite heterogeneity worldwide, due part different climatic conditions population dynamics, clear link risk has often been found be higher vulnerable subgroups, older people, people preexisting conditions, socioeconomically deprived. also highlights lack from low- middle-income countries focuses deaths. In addition, temporal well interactive other factors potential biological pathways. Importantly, these various aspects never fully investigated and, therefore, true extent impact remains largely unknown. Furthermore, research gaps solutions generate robust future consequences

Language: Английский

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Hourly Heat Exposure and Acute Ischemic Stroke

JAMA Network Open, Journal Year: 2024, Volume and Issue: 7(2), P. e240627 - e240627

Published: Feb. 28, 2024

Importance Previous studies have demonstrated the associations of daily high temperature with hospitalizations and mortality from ischemic stroke, but hourly association ambient heat acute stroke (AIS) onset has been rarely examined. Objectives To evaluate between AIS. Design, Setting, Participants This time-stratified case-crossover study was conducted using a nationwide registry that collects data more than 200 centers in China. were adult patients AIS who hospitalized warm seasons January 1, 2019, December 31, 2021. Exposures Hourly single-hour exposure lag up to 24 hours before (lag 0 hours). Main Outcomes Measures The main outcome Associations mean temperatures analyzed conditional logistic regression integrated distributed nonlinear model. Stratification analyses applied examine potential modifiers. Several sensitivity robustness results. Results A total 82 455 (mean [SD] age, 65.8 [11.9] years; 52 267 males [63.4%]) included final analysis. monotonically increasing risk associated higher temperatures. excess occurred immediately at persisted for 10 hours. Compared reference (12.1 °C), cumulative odds ratio (OR) over extremely (33.3 °C) 1.88 (95% CI, 1.65-2.13) nationwide. exposure-response curve steeper north south (OR, 1.80 [95% 1.53-2.11] vs 1.57 1.31-1.87]). ORs greater history dyslipidemia or atrial fibrillation, differences not significant. Conclusions Relevance this suggest is increased onset. finding may benefit formulation public health strategies reduce cerebrovascular under global warming.

Language: Английский

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Two-decade surface ozone (O3) pollution in China: Enhanced fine-scale estimations and environmental health implications

Remote Sensing of Environment, Journal Year: 2024, Volume and Issue: 317, P. 114459 - 114459

Published: Nov. 21, 2024

Language: Английский

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Burden of Stroke Attributable to Nonoptimal Temperature in 204 Countries and Territories

Neurology, Journal Year: 2024, Volume and Issue: 102(9)

Published: April 10, 2024

Stroke attributable to nonoptimal temperature needs more attention with dramatic climate change. The aim of this study was estimate the global burden and distribution characteristics burden.

Language: Английский

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Association of ambient ozone exposure and greenness exposure with hemorrhagic stroke mortality at different times: A cohort study in Shandong Province, China

Ecotoxicology and Environmental Safety, Journal Year: 2024, Volume and Issue: 278, P. 116356 - 116356

Published: April 27, 2024

Evidence on the association between long-term ozone exposure and greenness hemorrhagic stroke (HS) is limited, with mixed results. One potential source of this inconsistency difference in time metrics. This study aimed to investigate ambient ozone, greenness, mortality from HS using metrics at different times. We also examined whether modified relationship due HS. The population consisted 45771 participants aged ≥40 y residing 20 counties Shandong Province who were followed up 2013 2019. Ozone (annual mean warm season) normalized a measure exposure, calculated. environmental exposures (ozone exposures) was assessed time-dependent Cox proportional hazards models, modification stratified analysis interaction terms. person-years end follow-up 90,663. With full adjustments, risk death increased by 5% per interquartile range increase season [hazard ratio =1.05; 95 % confidence interval: 1.01–1.08]. No clear observed annual Both summer NDVI found reduce mortality. relationships influenced age, sex, residence (urban or rural). Furthermore, shown have modifying effect occurrence (P for = 0.001). Long-term O3 positively associated mortality, while inversely Greenness may mitigate negative effects

Language: Английский

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Burden of stroke attributable to high ambient temperature from 1990 to 2019: A global analysis

International Journal of Stroke, Journal Year: 2023, Volume and Issue: 18(9), P. 1121 - 1131

Published: June 10, 2023

To determine the global and regional burden of stroke due to high temperature spatiotemporal trends in 204 countries territories from 1990 2019.Based on Global Burden Disease Study 2019, deaths, disability-adjusted life years (DALYs), age-standardized mortality rate (ASMR) DALY (ASDR) for attributable (i.e. a daily mean warmer than theoretical minimum-risk exposure level (TMREL)) were calculated global, geographical location, country analyzed by age, sex, subtypes, socio-demographic index (SDI) 2019. The ASMR ASDR 2019 estimated linear regression model. coefficients (β) referred change per year or temperature.The had an increase trend (β = 0.005, 95% uncertainty interval (UI) 0.003-0.007 β 0.104, UI 0.066-0.142 ASDR, respectively). Globally, 0.048 million deaths 1.01 DALYs temperature, 0.60 (95% 0.07-1.30) 13.31 (1.40-28.97) 100,000 population, respectively. largest occurred Western Sub-Saharan Africa, followed South Asia, Southeast North Africa Middle East. increased with age higher males intracerebral hemorrhage, highest low SDI regions. In region percentage was Eastern 2019.Stroke has been increasing, observed people aged 65-75 years, males, SDI. Stroke constitutes major public health concern context warming.

Language: Английский

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Associations of long-term exposure to air pollution and green space with reproductive hormones among women undergoing assisted reproductive technology: A longitudinal study

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 905, P. 166941 - 166941

Published: Sept. 15, 2023

Language: Английский

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Greenness mitigate cause-specific mortality associated with air pollutants in ischemic and hemorrhagic stroke patients: An ecological health cohort study

Environmental Research, Journal Year: 2024, Volume and Issue: 251, P. 118512 - 118512

Published: March 7, 2024

Language: Английский

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Small-Area Association of Hourly Ambient Temperature and Acute Morbidity

Environmental Pollution, Journal Year: 2025, Volume and Issue: unknown, P. 125870 - 125870

Published: Feb. 1, 2025

Language: Английский

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