We report lichen cover change over a 20 years period for the Costa Rican capitol city. Foliaceous lichen cover was measured with a 10 x 10 cm template positioned 1.5 m above ground on the south, east, north and west sides of ten phorophytic trees per station (11 stations) from 1976 through 1997. Results were compared with previous measurements along an urban transect (at three heights above gro...

OBJECTIVES In order to measure occupational exposure concentrations of ethyl tertiary-butyl ether (ETBE), we developed a diffusive sampling method for monitoring ETBE and performed an ETBE exposure assessment. METHODS The applicability of diffusive samplers was examined by exposing the samplers to ETBE vapor in test chambers. The personal exposure levels of workers and airborne concentrations...

We use station-level price data and a significant diesel fuel carbon tax reform to study who bears the economic burden of taxes. difference-in-differences strategy estimate pass-through large increase retail prices, where we compare prices faced by private motorists gasoline prices. find that on average taxes are less than fully passed through consumer which suggests consumers supply chain spli...

Microbial enumeration and identification were carried out on several oil contaminated soil samples collected from gasoline and diesel stations. Bacteria were the most dominant microbiota and were therefore classified to generic level. Eleven main genera were detected and Corynebacterium was the predominant genus in all the samples. Biochemical characterisation and substrate utilisation showed h...

The aim of this study was to investigate whether the occupational exposure to gasoline of men employed at filling stations affects the sex of their children. Altogether 115 offspring (47 males, 68 females) were identified within families of 49 men working in filling stations in Shiraz (Fars province, south of Iran) and 345 offspring (178 males, 167 females) from 147 families of unexposed person...

J Jo ou ur rn na al l o of f E En nv vi ir ro on nm me en nt ta al l a an nd d O Oc cc cu up pa at ti io on na al l S Sc ci ie en nc ce e available at www.scopemed.org Abstract This study evaluated the correlation between red and white blood cell parameters and BTEX exposure among a cross-sectional survey involving 105 gasoline workers of 11 stations in Bangkok in 2009. Blood BTEX levels were e...