Heat index trends and climate change implications for occupational heat exposure in Da Nang, Vietnam

Opitz-Stapleton, Sarah; Sabbag, Lea; Hawley, Kate; Tran, Phong; Hoang, Lan; Nguyen, Phuong H.

doi:10.1016/j.cliser.2016.08.001

Cited by 62 publications

(38 citation statements)

References 38 publications

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“…Daily simulations of 18 general circulation models (GCMs) data from suite of the Coupled Model Intercomparison Project 5 (CMIP5) 60 (Table 2) www.nature.com/scientificreports/ to an uniform grid resolution of 1° × 1° using the bilinear interpolation method [61][62][63] for making them consistent to compute the multi model mean and which will be helpful in studying the explicit diagnosis of heat stress on space and time scale. Matthews et al 14 and Lee and Brenner 64 studied the global heat index, estimated from the temperature and relative humidity while Opitz-Stapleton et al 65 and Sylla et al 19 studied the same regionally. Lee and Berner 64 reported that these heat stress indices are used by International Organization for Standardization (ISO) and National Institute for Occupational Safety and Health (NIOSH) to measure the heat loads in order to prevent the heat illness.…”

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confidence: 99%

Projections of heat stress and associated work performance over India in response to global warming

Rao

Kumar

Kulkarni

et al. 2020

Sci Rep

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Summertime heat stress future projections from multi-model mean of 18 CMIP5 models show unprecedented increasing levels in the RCP 4.5 and RCP 8.5 emission scenarios over India. The estimated heat stress is found to have more impact on the coastal areas of India having exposure to more frequent days of extreme caution to danger category along with the increased probability of occurrence. The explicit amount of change in temperature, increase in the duration and intensity of warm days along with the modulation in large scale circulation in future are seemingly connected to the increasing levels of heat stress over India. A decline of 30 to 40% in the work performance is projected over India by the end of the century due to the elevated heat stress levels which pose great challenges to the country policy makers to design the safety mechanisms and to protect people working under continuous extreme hot weather conditions.

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confidence: 99%

Projections of heat stress and associated work performance over India in response to global warming

Rao

Kumar

Kulkarni

et al. 2020

Sci Rep

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“…Heat index is generally used to evaluate heat stress on humans in an outdoor environment by, for example, NOAA, the World Health Organization (WHO), and the Occupational Safety and Health Administration [101,104,119,120]. However, as heat index was devised for shady, light wind conditions, which are very similar to the indoor environment, it was also used for the evaluation of indoor environment in previous research [102,121]. Considering its simple calculation and broad application, heat index and its classification on heat safety was adopted in this study as the metric to use to quantify the impact of building energy efficiency on heat resilience.…”

Section: Heat Indexmentioning

confidence: 99%

Nexus of thermal resilience and energy efficiency in buildings: A case study of a nursing home

Sun

Specian

Hong

2020

Building and Environment

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Extreme weather events become more frequent and severe due to climate change. Although energy efficiency technologies can influence thermal resilience of buildings, they are traditionally studied separately, and their interconnections are rarely quantified. This study developed a methodology of modeling and analysis to provide insights into the nexus of thermal resilience and energy efficiency of buildings. We conducted a case study of a real nursing home in Florida, where 12 patients died during Hurricane Irma in 2017 due to HVAC system power loss, to understand and quantify how passive and active energy efficiency measures (EEMs) can improve thermal resilience to reduce heat-exposure risk of patients. Results show that passive measures of opening windows and doors for natural ventilation, as well as miscellaneous load reduction, are very effective in eliminating the extreme dangerous occasions. However, to maintain safe conditions, active measures such as on-site power generators and thermal storage are also needed. The nursing home was further studied by changing its location to two other cities: San Francisco (mild climate) and Chicago (cold winter and hot summer). Results revealed that the EEMs' impacts on thermal resilience vary significantly by climate and building characteristics. The study also estimated the costs of EEMs to help stakeholders prioritize the measures. Passive measures that may not save energy may greatly improve thermal resilience, and thus should be considered in building design or retrofit. Findings from this study indicate energy efficiency technologies should be evaluated not only by their energy savings performance but also by their influence on a building's resilience to extreme weather events.

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“…It is important to emphasize that while the HDIs are primarily designed for climate-health experts to gauge exposure risk to humans under different thermal environments, the spill-over effects The two versions of WBGT used in this article calculated following Gagge and Nishi [49] (Equation (10)) and the ABM (Equation (11)) are as follows: WBGT = 0.567 × T a + 0.216 × VP + 3.38 (10) WBGT _ABM = 0.567 × T a + 0.393 × VP + 3.94 (11) It must be emphasized here that neither of the two versions of WBGT (Equations (10) and 11) account for exposure to SR (or the T g ) as commonly found in literature. Such variants of WBGT (Equations (12) and (13)) [50] applicable for outdoor conditions under direct short-wave radiation, are defined as:…”

Section: Simplified Wet Bulb Globe Temperature (Wbgt) Units: • Cmentioning

confidence: 99%

“…Exposure of human body to different meteorological elements, especially a combination of extremes in temperature, humidity, and/or wind that can have a disruptive impact on working conditions and labor productivity, are also frequently mentioned in health impacts literature (e.g., see [7,8] and references therein). Amongst both indoor and outdoor thermal exposures, human discomfort measures accounting for cold, heat, wind, humidity, and direct sunlight, are often considered as proxies for determining the likelihood of health risks (e.g., heat stroke and the associated mortality [9][10][11][12][13] to environment exposure), as well as the potential spike in demands of public utilities (e.g., energy demand for space cooling in residential/commercial buildings and work-spaces [14][15][16], ambulance callouts [17,18], etc. ).…”

Section: Introductionmentioning

confidence: 99%

A High Spatiotemporal Resolution Global Gridded Dataset of Historical Human Discomfort Indices

Mistry

2020

Atmosphere

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Meteorological human discomfort indices or bioclimatic indices are important metrics to gauge potential risks to human health under varying environmental thermal exposures. Derived using sub-daily meteorological variables from a quality-controlled reanalysis data product (Global Land Data Assimilation System—GLDAS), a new high-resolution global dataset referred to as “HDI_0p25_1970_2018” is presented in this study. The dataset includes the following daily indices at 0.25° × 0.25° gridded resolution: (i) Apparent Temperature indoors (ATind); (ii) two variants of Apparent Temperature outdoors in shade (ATot); (iii) Heat Index (HI); (iv) Humidex (HDEX); (v) Wet Bulb Temperature (WBT); (vi) two variants of Wet Bulb Globe Temperature (WBGT); (vii) Thom Discomfort Index (DI); and (viii) Windchill Temperature (WCT). Spanning 49 years over the period 1970–2018, HDI_0p25_1970_2018 fills gaps in existing climate indices datasets by being the only high-resolution historical global-gridded daily time-series of multiple human discomfort indices based on different meteorological parameters, thus offering applications in wide-ranging climate zones and thermal-comfort environments.

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Heat index trends and climate change implications for occupational heat exposure in Da Nang, Vietnam

Cited by 62 publications

References 38 publications

Projections of heat stress and associated work performance over India in response to global warming

Projections of heat stress and associated work performance over India in response to global warming

Nexus of thermal resilience and energy efficiency in buildings: A case study of a nursing home

A High Spatiotemporal Resolution Global Gridded Dataset of Historical Human Discomfort Indices

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