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Effect of Liquefied Petroleum Gas on Ozone Formation in Guadalajara and Mexico City
| Content Provider | Scilit |
|---|---|
| Author | Jaimes-López, J. Luis Sandoval-Fernández, Julio González-Ortíz, Emmanuel Vázquez-García, Marcos Macias, Uriel Gonzalez Zambrano-García, Angel |
| Copyright Year | 2005 |
| Description | Leakages of liquefied petroleum gas (LPG) are suspected to contribute greatly to ozone $(O_{3}$) formation in Mexico City. We tested such a hypothesis by outdoor captive-air irradiation (CAI) experiments in the two largest Mexican metropolitan areas: Guadalajara (GMA) in 1997 and Mexico City (MCMA) in 2000. $O_{3}$ was monitored in each city for 20 days (8:00 a.m.–6:00 p.m.) in smog chambers containing unaltered morning air or morning air enriched with either commercial LPG or LPG synthetic mixture 60/40 (propane and butane). Tested additions of both components were 35% (by volume) in GMA and 60% (by volume) in MCMA. The addition effects on $O_{3}$ (max) were compared with effects from diluting LPG components or total nonmethane hydrocarbons (tNMHCs) by 50%. Diluting tNMHCs had the greatest absolute effect at both cities: it lowered $O_{3}$ (max) by 24% in GMA and 55% in MCMA. Adding commercial LPG increased $O_{3}$ (max) by 6% in GMA and 28% in MCMA; whereas adding LPG synthetic mixture 60/40 caused a similar increase in $O_{3}$ (max), 4 and 21% in GMA and MCMA, respectively. Compared with dilution of tNMHCs, dilution of LPG-associated compounds had a smaller decreasing effect on $O_{3}$ (max), only 4% in GMA and 15% in MCMA. These results show that commercial LPG and LPG synthetic mixture 60/40 affect $O_{3}$ formation to a lesser extent than estimated previously. |
| Related Links | http://www.tandfonline.com/doi/pdf/10.1080/10473289.2005.10464667?needAccess=true |
| Ending Page | 846 |
| Page Count | 6 |
| Starting Page | 841 |
| ISSN | 10962247 |
| e-ISSN | 21622906 |
| DOI | 10.1080/10473289.2005.10464667 |
| Journal | Journal of the Air & Waste Management Association |
| Issue Number | 6 |
| Volume Number | 55 |
| Language | English |
| Publisher | Informa UK Limited |
| Publisher Date | 2005-06-01 |
| Access Restriction | Open |
| Subject Keyword | Journal: Journal of the Air & Waste Management Association Environmental Engineering Ozone Gas Petroleum Guadalajara Lpg Gma Mcma Morning Liquefied |
| Content Type | Text |
| Resource Type | Article |
| Subject | Atmospheric Science Pollution Waste Management and Disposal Management, Monitoring, Policy and Law |
