Sustainable development goals series, Journal Year: 2024, Volume and Issue: unknown, P. 9 - 32
Published: Jan. 1, 2024
Language: Английский
GeoHealth, Journal Year: 2024, Volume and Issue: 8(4)
Published: March 28, 2024
Abstract Wildfire smoke fine particles (PM 2.5 ) are a growing public health threat as wildfire events become more common and intense under climate change, especially in the Western United States. Studies assessing association between PM exposure typically summarize effects over study area. However, responses to may vary spatially. We evaluated spatially‐varying respiratory acute care utilization risks associated with short‐term explored community characteristics possibly driving spatial heterogeneity. Using ensemble‐modeled daily , we defined day have wildfire‐specific concentration ≥15 μg/m 3 . included emergency department visits unplanned hospitalizations 1,396 California ZIP Code Tabulation Areas (ZCTAs) 15 census‐derived characteristics. Employing case‐crossover design conditional logistic regression, observed increased odds of on days at state level (odds ratio [OR] = 1.06, 95% confidence interval [CI]: 1.05, 1.07). Across air basins, ORs ranged from 0.88 1.57, highest effect estimate San Diego. A within‐community matching Bayesian hierarchical model also revealed heterogeneity ZCTA‐level rate differences. For example, communities higher percentage Black or Pacific Islander residents had stronger ‐outcome relationships, while conditioning tree canopy attenuated associations. found an important smoke‐related impacts across counties, ZCTAs, identified vulnerable communities, providing evidence guide policy development resource allocation.
Language: Английский
Citations
9
Fire, Journal Year: 2025, Volume and Issue: 8(3), P. 97 - 97
Published: Feb. 26, 2025
Older adults may experience worse wildfire fine particulate matter (PM2.5) smoke-related health effects due to conditions such as Alzheimer’s disease and related dementias (ADRDs). We evaluated whether PM2.5 was associated with acute hospitalizations among older ADRD, linking modeled daily concentrations circulatory, respiratory, anxiety, depression from 2006 2016. employed a case-crossover design conditional logistic regression estimate associations between lagged hospitalizations. Also, we stratified cause-specific models by age, sex, emergency hospitalization status, zip code-level urbanicity poverty. The 1,546,753 Medicare enrollees ADRD were most coded for circulatory (71.7%), followed respiratory (43.6%), (2.9%), anxiety (0.7%) endpoints. observed null over the six days following exposure. Same-day decreased (rate ratio = 0.94, 95% CI: 0.90, 0.99). saw some effect measure modifications status urbanicity. There stratum-specific but results remained mostly null. Future studies should use improved methods identify examine recent years higher concentrations.
Language: Английский
Citations
1
medRxiv (Cold Spring Harbor Laboratory), Journal Year: 2025, Volume and Issue: unknown
Published: March 15, 2025
Abstract January 2025 brought devastating wildfires to Los Angeles (LA) County, California, causing poor air quality, destroying homes and businesses, displacing thousands of people. We used electronic health record data from 3.7 million Kaiser Permanente Southern California members promptly determine if the LA Fires increased outpatient acute healthcare utilization. created exposure categories using maximum wildfire burn zone reached by an or Ventura County as 16, 2025. Highly-exposed resided in census tracts located <20km zones moderately-exposed lived ≥20km but within County. identified daily virtual care visits five categories: all-cause, cardiovascular, injury, neuropsychiatric, respiratory. conducted 2-stage interrupted time-series analyses machine-learning algorithms how much Across week following 7 ignitions, respiratory were 41% (95% empirical confidence interval [eCI]: 26%, 56%) higher 34% eCI: 17%, 52%) than expected highly- groups, respectively, totaling 3,221 excess visits. Similarly, both groups had approximately 35% more cardiovascular over same period. Among highly-exposed members, injury neuropsychiatric ≥18% on 7. Substantial increases utilization driven primarily care-seeking observed Fires. As disruptive climate events increase, such are essential inform preparedness response. Significance statement Climate hazards like will increasingly impact US cities. use for conditions post-LA ignitions living <20 km a anywhere This included 2,424 (+35%) By applying our estimates all residents, we estimated 16,171 21,541 occurred during ignition. visits, care-seeking, suggesting this service should be expanded events.
Language: Английский
Citations
0
Environmental Research, Journal Year: 2024, Volume and Issue: 261, P. 119667 - 119667
Published: July 26, 2024
Many studies have explored the impact of extreme heat on health, but few investigated localized heat-health outcomes across a wide area. We examined fine-scale variability in vulnerable areas, considering population distribution, local weather, and landscape characteristics. Using 36 different event definitions, we identified most dangerous types events based minimum, maximum, diurnal temperatures with varying thresholds durations. Focusing California's diverse climate, elevation, analyzed hospital admissions for various causes admission (2004-2013). Our matching approach zip codes, even small populations, absolute relative scales. Bayesian Hierarchical models leveraged spatial correlation. ranked by attributable per code provided code, simulated data, an interactive web app reproducibility. findings showed high variation heat-related hospitalizations coastal cities substantial burdens Central Valley. Diurnal had greatest Valley, while nighttime drove southeastern desert. This spatially informed guides policies, prioritizing to reduce burden. The methodology is applicable other regions, informing early warning systems characterizing impacts.
Language: Английский
Citations
1
Journal of Applied Polymer Science, Journal Year: 2024, Volume and Issue: unknown
Published: Aug. 31, 2024
Abstract Currently, the problem of air pollution is getting more and serious, especially tiny solid particles (PM, particulate matter) in air, which poses a great challenge to environment human health. Therefore, it particularly important develop filtration materials with high efficiency low resistance meet this challenge. In study, we propose prepare membranes by centrifugal jet electrospinning technology, design multifactorial orthogonal coupling experiments, investigate effects key process parameters electrostatic spinning, including solution concentration, airflow rate, rotational speed, voltage, on fiber diameter uniformity applying polar analysis variance variance. PAN‐BaTiO 3 electret nanofiber were prepared combining optimized blowing electrospinning. Various characterization methods (tensile test, water contact angle surface charge test) used evaluate effect different BaTiO contents (0%, 0.1%, 0.5%, 1%) comprehensive performance membranes, present reached as 96.56% pressure drop 29 Pa.
Language: Английский
Citations
1
The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 954, P. 176543 - 176543
Published: Sept. 26, 2024
Language: Английский
Citations
0
The Lancet Planetary Health, Journal Year: 2024, Volume and Issue: 8(11), P. e906 - e914
Published: Nov. 1, 2024
Being unhoused can increase vulnerability to adverse health effects due air pollution. We aimed quantify changes in emergency-department visits during and after exposure wildfire-specific non-wildfire particulate matter 2·5 μm or less diameter (PM
Language: Английский
Citations
0
Environmental Research Health, Journal Year: 2024, Volume and Issue: 3(1), P. 015002 - 015002
Published: Nov. 26, 2024
Abstract The threats to human health from wildfires and wildfire smoke (WFS) in the United States (US) are increasing due continued climate change. A growing body of literature has documented important adverse effects WFS exposure, but there is insufficient evidence regarding how risk related exposure varies across individual or community level characteristics. To address this gap, we utilized a large nationwide database healthcare utilization claims for emergency department (ED) visits California multiple seasons (May through November, 2012–2019) quantified impacts fine particulate matter <2.5 μ m (PM 2.5 ) air pollution attributable WFS, overall among subgroups population. We aggregated daily counts ED Zip Code Tabulation Area (ZCTA) used time-stratified case-crossover design distributed lag non-linear models estimate association between relative visits. further assessed with varied defined by age, race, social vulnerability, residential conditioning (AC) prevalence. Over 7 day period, PM was associated elevated all causes (1.04% (0.32%, 1.71%)), non-accidental (2.93% (2.16%, 3.70%)), respiratory disease (15.17% (12.86%, 17.52%)), not cardiovascular diseases (1.06% (−1.88%, 4.08%)). Analysis revealed potential differences susceptibility AC prevalence, ZCTA-level Social Vulnerability Index scores. These results suggest that higher rates cause, non-accidental, heterogeneity certain subgroups. Notably, lower availability risks activity.
Language: Английский
Citations
0
Sustainable development goals series, Journal Year: 2024, Volume and Issue: unknown, P. 9 - 32
Published: Jan. 1, 2024
Language: Английский
Citations
0