High Concentrations of Ozone Air Pollution on Mount Everest: Health Implications for Sherpa Communities and Mountaineers
| Autor: | John L. Semple, G. W. Kent Moore, Petros Koutrakis, Jack M. Wolfson, Paolo Cristofanelli, Paolo Bonasoni |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Ozone
010504 meteorology & atmospheric sciences Meteorology Physiology ozone pollution Himalaya Air pollution Climate change medicine.disease_cause 01 natural sciences 03 medical and health sciences chemistry.chemical_compound 0302 clinical medicine Nepal Air Pollution medicine Humans 030212 general & internal medicine Transect Health implications 0105 earth and related environmental sciences Air Pollutants Mountaineering Altitude Public Health Environmental and Occupational Health Environmental Exposure General Medicine Effects of high altitude on humans Mount Geography chemistry climate change and health effects Seasons Physical geography |
| Zdroj: | High altitude medicine & biology 17 (2016): 365–369. doi:10.1089/ham.2016.0042 info:cnr-pdr/source/autori:Semple J.L.; Moore G.W.K.; Koutrakis P.; Wolfson J.M.; Cristofanelli P.; Bonasoni P./titolo:High Concentrations of Ozone Air Pollution on Mount Everest: Health Implications for Sherpa Communities and Mountaineers/doi:10.1089%2Fham.2016.0042/rivista:High altitude medicine & biology/anno:2016/pagina_da:365/pagina_a:369/intervallo_pagine:365–369/volume:17 |
| ISSN: | 1557-8682 |
| DOI: | 10.1089/ham.2016.0042 |
| Popis: | Semple, John L., G.W. Kent Moore, Petros Koutrakis, Jack M. Wolfson, Paolo Cristofanelli, and Paolo Bonasoni. High concentrations of ozone air pollution on Mount Everest: health implications for Sherpa communities and mountaineers. High Alt Med Biol. 17:365-369, 2016.-Introduction: Populations in remote mountain regions are increasingly vulnerable to multiple climate mechanisms that influence levels of air pollution. Few studies have reported on climate-sensitive health outcomes unique to high altitude ecosystems. In this study, we report on the discovery of high-surface ozone concentrations and the potential impact on health outcomes on Mount Everest and the high Himalaya.Surface ozone measurements were collected during ascending transects in the Mount Everest region of Nepal with passive nitrite-coated Ogawa filter samplers to obtain 8-hour personal exposures (2860-5364 m asl). In addition, the Nepal Climate Observatory-Pyramid, a GAW-WMO Global Station sited in the Khumbu Valley (5079 m asl), collected ozone mixing ratios with photometric gas analyzer.Surface ozone measurements increased with altitude with concentrations that exceed 100 ppb (8-hour exposure). Highest values were during the spring season and the result of diverse contributions: hemispheric background values, the descent of ozone-rich stratospheric air, and the transport of tropospheric pollutants occurring at different spatial scales.Multiple climate factors, including descending stratospheric ozone and imported anthropogenic air masses from the Indo-Gangetic Plain, contribute to ambient ozone exposure levels in the vicinity of Mount Everest that are similar to if not higher than those reported in industrialized cities. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|