Journal article
Resolving and Predicting Neighborhood Vulnerability to Urban Heat and Air Pollution: Insights From a Pilot Project of Community Science
Geohealth, Vol.6(5), pp.e2021GH000575-e2021GH000575
05/2022
DOI: 10.1029/2021GH000575
PMCID: PMC9055464
PMID: 35509494
Abstract
Urban heat and air pollution, two environmental threats to urban residents, are studied via a community science project in Los Angeles, CA, USA. The data collected, for the first time, by community members, reveal the significance of both the large spatiotemporal variations of and the covariations between 2 m air temperature (2mT) and ozone (O
) concentration within the (4 km) neighborhood scale. This neighborhood variation was not exhibited in either daily satellite observations or operational model predictions, which makes the assessment of community health risks a challenge. Overall, the 2mT is much better predicted than O
by the weather and research forecast model with atmospheric chemistry (WRF-Chem). For O
, diurnal variation is better predicted by WRF-Chem than spatial variation (i.e., underestimated by 50%). However, both WRF-chem and the surface observation show the overall consistency in describing statistically significant covariations between O
and 2mT. In contrast, satellite-based land surface temperature at 1 km resolution is insufficient to capture air temperature variations at the neighborhood scale. Community engagement is augmented with interactive maps and apps that show the predictions in near real time and reveals the potential of green canopy to reduce air temperature and ozone; but different tree types and sizes may lead to different impacts on air temperature, which is not resolved by the WRF-Chem. These findings highlight the need for community science engagement to reveal otherwise impossible insights for models, observations, and real-time dissemination to understand, predict, and ultimately mitigate, urban neighborhood vulnerability to heat and air pollution.
Details
- Title: Subtitle
- Resolving and Predicting Neighborhood Vulnerability to Urban Heat and Air Pollution: Insights From a Pilot Project of Community Science
- Creators
- Jun Wang - Center for Global & Regional Environmental Research and Iowa Technology Institute The University of Iowa Iowa City IA52242Lorena Castro-Garcia - University of IowaG Darrel Jenerette - University of California, RiversideMark Chandler - Earthwatch InstituteCui Ge - University of IowaDion Kucera - University of California, RiversideSofia Koutzoukis - University of California, RiversideJing Zeng - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Geohealth, Vol.6(5), pp.e2021GH000575-e2021GH000575
- DOI
- 10.1029/2021GH000575
- PMID
- 35509494
- PMCID
- PMC9055464
- NLM abbreviation
- Geohealth
- eISSN
- 2471-1403
- Grant note
- DOI: 10.13039/100014573, name: Earth Sciences Division, award: NNX17AG61
- Language
- English
- Date published
- 05/2022
- Academic Unit
- Civil and Environmental Engineering; Iowa Technology Institute; Physics and Astronomy; Chemical and Biochemical Engineering
- Record Identifier
- 9984256773402771
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