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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2026-06-11 23:58 |
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Conference: Bucharest University Faculty of Physics 2026 Meeting
Section: Atmosphere and Earth Science; Environment Protection
Title:
Urban heat stress in Bucharest: present and future scenarios and impact on population
Authors:
Razvan PIRLOAGA(1), Bogdan ANTONESCU(1,2), Luminita MARMUREANU(2), Dragos ENE(2), Anca DUMITRU(1)
Affiliation:
1) Faculty of Physics, University of Bucharest, Magurele, Romania
2) National Institute for Earth Physics, Magurele, Romania
E-mail
razvan_ultimate@yahoo.com
Keywords:
Urban heat stress, Wet-Bulb Globe Temperature, Lost Working Hours
Abstract:
Urban heat stress is a growing public-health concern across European cities under climate change. Using a high resolution data-set is essential for providing the urban characteristics and to determine who is actually exposed. In this study, the UrbClim 100 m dataset for Bucharest, Romania was used to quantify present (2011–2020) and projected (2021–2040, 2041–2060) heat stress under two climate scenarios: Current Policies and Green Sustainability. We analyzed days with wet-bulb globe temperature (WBGT) above 28°C and 31°C, annual lost working hours for intense, moderate, and light outdoor work and their economic impact. Under present climate, WBGT exceeds 28°C on 15–24 days yr-1across most of the city, while WBGT > 31°C is currently rare and patchy. By mid-century, days above 28°C rise by 1.8–17.8 per year under CurPol and by 0.8–12.5 under GS. WBGT > 31°C reach up to 6.5 days per year for CurPol and 4.4 days per year for GS. In economic terms, an outdoor construction worker in Bucharest loses about 136 hours per year to heat on average (€800 at current Romanian wages), with a intra-urban gradient from 10–40 hours per worker per year in the cool northern areas to 160–220 hours per worker per year in the centre of Bucharest and former industrial areas. By 2041–2060 the city mean rises to 244 hours under CurPol (€1,440) and 206 hours under GS (~€1,220). Moderate intensity urban occupations show smaller but similarly structured increases. These results are provided as an interactive dashboard for the general public and for local authorities (https://heat-atlas.ro/urban).
References:
Souverijns, N., Lauwaet, D., Lejeune, Q., Kropf, C. M., Yeung, K. L., Nath, S., & Schleussner, C. F. (2026). 100 m climate and heat stress data up to 2100 for 142 cities around the globe. Data in Brief , 65 , 112497. (Dataset available at: https://doi.org/10.5281/zenodo.13361538) doi:10.1016/j.dib.2026.112497658
Acknowledgement:
This work was supported by a grant of the Ministry of Education and Research, CCCDI - UEFISCDI, project number PN-IV-P6-6.1-CoEx-2024-0042, within PNCDI IV and by project #64 by the program PNRR-III-C9-2023–I8 of the Romanian MCID (64/30.07.2023)
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