Fine-scale mapping of an evidence-based heat health risk index for high-density cities: Hong Kong as a case study

Song, Jinglu; Huang, Bo; Kim, Joon Sik; Wen, Jiahong; Li, Rongrong

doi:10.1016/j.scitotenv.2020.137226

Cited by 57 publications

(27 citation statements)

References 59 publications

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“…Vulnerability maps enable health officials and policy makers to identify "hotspots" within cities and target interventions to places and people most in need. [29][30][31] We urgently need to evaluate the effect of urban characteristics on temperaturehealth relationships because urban populations experience higher heat risks, particularly in a warming climate. An international study found that the effects of heat on mortality were higher in cities with a higher level of inequality, higher exposure to air pollution, fewer green spaces, and lower availability of health services.…”

Section: Key Messagesmentioning

confidence: 99%

“…Vulnerability maps enable health officials and policy makers to identify “hotspots” within cities and target interventions to places and people most in need. 29 30 31 …”

Section: Vulnerability To Urban Heatmentioning

confidence: 99%

“…Understanding which individuals and neighbourhoods are most vulnerable can help guide local adaptation efforts. Vulnerability maps enable health officials and policy makers to identify “hotspots” within cities and target interventions to places and people most in need 293031…”

Section: Vulnerability To Urban Heatmentioning

confidence: 99%

See 2 more Smart Citations

Urban heat: an increasing threat to global health

Tong

Prior

McGregor

et al. 2021

BMJ

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show abstract

Section: Key Messagesmentioning

confidence: 99%

“…Vulnerability maps enable health officials and policy makers to identify “hotspots” within cities and target interventions to places and people most in need. 29 30 31 …”

Section: Vulnerability To Urban Heatmentioning

confidence: 99%

See 1 more Smart Citation

Urban heat: an increasing threat to global health

Tong

Prior

McGregor

et al. 2021

BMJ

View full text Add to dashboard Cite

show abstract

“…Accordingly, mortality risk under thermal stress can be better explained by considering both T amb and RH amb [5][6][7][8]. To this end, a variable such as the Heat Index (HI) was constructed to provide a single value that integrates the effects of T amb and RH amb to estimate thermal risk [9].…”

Section: Introductionmentioning

confidence: 99%

A Low-Cost, Easy-to-Assemble Device to Prevent Infant Hyperthermia under Conditions of High Thermal Stress

Farré

Rodríguez-Lázaro

Dinh-Xuan

et al. 2021

IJERPH

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High ambient temperature and humidity greatly increase the risk of hyperthermia and mortality, particularly in infants, who are especially prone to dehydration. World areas at high risk of heat stress include many of the low- and middle-income countries (LMICs) where most of their inhabitants have no access to air conditioning. This study aimed to design, evaluate, and test a novel low-cost and easy-to-assemble device aimed at preventing the risk of infant hyperthermia in LMICs. The device is based on optimizing negative heat transfer from a small amount of ice and transferring it directly to the infant by airflow of refrigerated air. As a proof of concept, a device was assembled mainly using recycled materials, and its performance was assessed under laboratory-controlled conditions in a climatic chamber mimicking realistic stress conditions of high temperature and humidity. The device, which can be assembled by any layperson using easily available materials, provided sufficient refrigerating capacity for several hours from just 1–2 kg of ice obtained from a domestic freezer. Thus, application of this novel device may serve to attenuate the adverse effects of heat stress in infants, particularly in the context of the evolving climatic change trends.

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“…Constructing spatial heat risk indicators is an effective method for quantitative assessment. Several frameworks have been developed to create heat risk indicators, while the frequently used methods are multiplication-based Crichton’s risk triangle framework [ 7 , 8 , 9 , 10 , 11 , 12 ] and summatory-based heat vulnerability index (HVI) framework [ 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 ]. Crichton’s risk assessment method has been used to assess flood hazards in the UK [ 24 ] and climate-related heat risks [ 25 ].…”

Section: Introductionmentioning

confidence: 99%

Mapping Heat-Related Risks in Northern Jiangxi Province of China Based on Two Spatial Assessment Frameworks Approaches

Zheng

Zhang

Shi

et al. 2020

IJERPH

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Heat-health risk is a growing concern in many regions of China due to the more frequent occurrence of extremely hot weather. Spatial indexes based on various heat assessment frameworks can be used for the assessment of heat risks. In this study, we adopted two approaches—Crichton’s risk triangle and heat vulnerability index (HVI) to identify heat-health risks in the Northern Jiangxi Province of China, by using remote sensing and socio-economic data. The Geographical Information System (GIS) overlay and principal component analysis (PCA) were separately used in two frameworks to integrate parameters. The results show that the most densely populated community in the suburbs, instead of city centers, are exposed to the highest heat risk. A comparison of two heat assessment mapping indicates that the distribution of HVI highlights the vulnerability differences between census tracts. In contrast, the heat risk index of Crichton’s risk triangle has a prominent representation for regions with high risks. The stepwise multiple linear regression zero-order correlation coefficient between HVI and outdoor workers is 0.715, highlighting the vulnerability of this particular group. Spearman’s rho nonparametric correlation and the mean test reveals that heat risk index is strongly correlated with HVI in most of the main urban regions in the study area, with a significantly lower value than the latter. The analysis of variance shows that the distribution of HVI exhibits greater variety across urban regions than that of heat risk index. Our research provides new insight into heat risk assessment for further study of heat health risk in developing countries.

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Fine-scale mapping of an evidence-based heat health risk index for high-density cities: Hong Kong as a case study

Cited by 57 publications

References 59 publications

Urban heat: an increasing threat to global health

Urban heat: an increasing threat to global health

A Low-Cost, Easy-to-Assemble Device to Prevent Infant Hyperthermia under Conditions of High Thermal Stress

Mapping Heat-Related Risks in Northern Jiangxi Province of China Based on Two Spatial Assessment Frameworks Approaches

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