Characteristics of PM2.5, CO2 and particle-number concentration in mass transit railway carriages in Hong Kong
| العنوان: | Characteristics of PM2.5, CO2 and particle-number concentration in mass transit railway carriages in Hong Kong |
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| المؤلفون: | Wenjing Deng, Wei Guo, Yan Cheng, Hai-Long Zheng |
| المصدر: | Environmental Geochemistry and Health. 39:739-750 |
| بيانات النشر: | Springer Science and Business Media LLC, 2016. |
| سنة النشر: | 2016 |
| مصطلحات موضوعية: | Environmental Engineering, 010504 meteorology & atmospheric sciences, Particle number, General Medicine, 010501 environmental sciences, 01 natural sciences, World health, Transport engineering, Carriage, Indoor air quality, Beijing, Air pollutants, Geochemistry and Petrology, Co2 concentration, Environmental health, Correlation analysis, Environmental Chemistry, Environmental science, 0105 earth and related environmental sciences, General Environmental Science, Water Science and Technology |
| الوصف: | Fine particulate matter (PM2.5) levels, carbon dioxide (CO2) levels and particle-number concentrations (PNC) were monitored in train carriages on seven routes of the mass transit railway in Hong Kong between March and May 2014, using real-time monitoring instruments. The 8-h average PM2.5 levels in carriages on the seven routes ranged from 24.1 to 49.8 µg/m3, higher than levels in Finland and similar to those in New York, and in most cases exceeding the standard set by the World Health Organisation (25 µg/m3). The CO2 concentration ranged from 714 to 1801 ppm on four of the routes, generally exceeding indoor air quality guidelines (1000 ppm over 8 h) and reaching levels as high as those in Beijing. PNC ranged from 1506 to 11,570 particles/cm3, lower than readings in Sydney and higher than readings in Taipei. Correlation analysis indicated that the number of passengers in a given carriage did not affect the PM2.5 concentration or PNC in the carriage. However, a significant positive correlation (p |
| تدمد: | 1573-2983 0269-4042 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::6e8d97172d4fb58ade1e48a2f1104325 https://doi.org/10.1007/s10653-016-9844-y |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........6e8d97172d4fb58ade1e48a2f1104325 |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 15732983 02694042 |
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