H₂S emissions from Cerro Prieto geothermal power plant, Mexico, and air pollutants measurements in the area

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• 作者：Oscar Peralta^a ; ^{oscar@atmosfera.unam.mx} ; Telma Castro^a ; Matilde Duró ; n^b ; Alejandro Salcido^c ; Ana-Teresa Celada-Murillo^c ; Rafael Navarro-Gonzá ; lez^d ; Claudia Má ; rquez^a ; José ; Garcí ; a^a ; José ; de la Rosa^d ; Ricardo Torres^a ; Raymundo Villegas-Martí ; nez^c ; Susana Carreó ; n-Sierra^c ; Mireya Imaz^e ; Amparo Martí ; nez-Arroyo^a ; Isabel Saavedra^a ; Marí ; a de la Luz Espinosa^a ; Alejandro Torres-Jaramillo^f
• 关键词：Cerro Prieto geothermal plant ; Environmental concentration of H2S ; Air pollution ; AERMOD dispersion modeling of H2S
• 刊名：Geothermics
• 出版年：2013
• 出版时间：April, 2013
• 年：2013
• 卷：46
• 期：Complete
• 页码：55-65
• 全文大小：1518 K

文摘

We measured meteorological parameters and environmental concentrations of hydrogen sulfide (H₂S) and criteria pollutants at Cerro Prieto, Mexico, from May to July 2010. In addition, non-condensable gases from vent stacks at Cerro Prieto geothermal power plant were sampled and analyzed by gas chromatography-mass spectrometry. A dispersion model, which was validated with environmental measurements, was applied to H₂S. Criteria pollutants never exceeded the Mexican air quality standards. Results from dispersion modeling were compared against measured concentrations showing acceptable agreements for Chi square goodness of fit (¦Ö²) in the 95 % significance level (¦Á = 0.05), at afternoons and evening events when boundary layer is decreasing and wind speed is less than 5.5 m s^?1. Determination coefficient of curve fitting for computed concentrations at less than 4 km from the source was 0.513 and farther 0.568. This study was the first to measure criteria pollutants and H₂S in Cerro Prieto area.