A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Measurements of sulfur dioxide, ozone and ammonia concentrations in Asia, Africa, and South America using passive samplers
AbstractMeasurements of gaseous SO2, NH3, and O3 using IVL passive sampler technology were obtained during a pilot measurement program initiated as a key component of the newly established WMO/GAW Urban Research Meteorology and Environment (GURME) project. Monthly measurements were obtained at 50 stations in Asia, Africa, South America, and Europe. The median SO2 concentrations vary from a high of 13ppb at Linan, China, to <0.03ppb at four stations. At 30 of 50 regional stations, the observed median concentrations are <1ppb. Median ammonia concentrations range from 20ppb at Dhangadi, India, to <1ppb at nine stations. At 27 of regional stations, the ambient ammonia levels exceed 1ppb. The median ozone concentrations vary from a maximum of 45ppb at Waliguan Mountain, China, to 8ppb in Petit Saut, French Guiana. In general, the highest ozone values are found in the mid-latitudes, with the Northern hemisphere mid-latitude values exceeding the Southern hemisphere mid-latitude levels, and the lowest values are typically found in the tropical regions.
Measurements of sulfur dioxide, ozone and ammonia concentrations in Asia, Africa, and South America using passive samplers
AbstractMeasurements of gaseous SO2, NH3, and O3 using IVL passive sampler technology were obtained during a pilot measurement program initiated as a key component of the newly established WMO/GAW Urban Research Meteorology and Environment (GURME) project. Monthly measurements were obtained at 50 stations in Asia, Africa, South America, and Europe. The median SO2 concentrations vary from a high of 13ppb at Linan, China, to <0.03ppb at four stations. At 30 of 50 regional stations, the observed median concentrations are <1ppb. Median ammonia concentrations range from 20ppb at Dhangadi, India, to <1ppb at nine stations. At 27 of regional stations, the ambient ammonia levels exceed 1ppb. The median ozone concentrations vary from a maximum of 45ppb at Waliguan Mountain, China, to 8ppb in Petit Saut, French Guiana. In general, the highest ozone values are found in the mid-latitudes, with the Northern hemisphere mid-latitude values exceeding the Southern hemisphere mid-latitude levels, and the lowest values are typically found in the tropical regions.
Measurements of sulfur dioxide, ozone and ammonia concentrations in Asia, Africa, and South America using passive samplers
Carmichael, Gregory R (author) / Ferm, Martin (author) / Thongboonchoo, Narisara (author) / Woo, Jung-Hun (author) / Chan, L.Y (author) / Murano, Kentaro (author) / Viet, Pham Hung (author) / Mossberg, Carl (author) / Bala, Rajasekhlar (author) / Boonjawat, Jariya (author)
Atmospheric Environment ; 37 ; 1293-1308
2002-10-18
16 pages
Article (Journal)
Electronic Resource
English
Diffusive samplers , Sulfur dioxide , Ammonia , Ozone , Asia , Africa
Ozone Measurements in South Carolina Using Passive Samplers
| Taylor & Francis Verlag | 2004
A study of personal exposure to nitrogen dioxide using passive samplers
| British Library Online Contents | 2000
Use of passive ambient ozone (O3) samplers in vegetation effects assessment
| Online Contents | 2001