To assess the distribution of polycyclic aromatic hydrocarbons (PAHs) and identifying the main source of the pollutants in coastal, canals, riverine and the upper Gulf of Thailand, surface sediments were collected from urban canals (n = 8), the Chao Phraya River (n = 11), estuarine (n = 9), coastal area (n = 14) and the upper Gulf of Thailand (n = 28) and analyzed for 3-7 rings of PAHs. Sources...

Concentrations of ambient particulate-bound polycyclic aromatic hydrocarbons (pPAHs) were measured in PM10 samples collected at roadside, industrial and urban background sites Bangkok between May 2013 2014. The annual average concentrations not significantly different the roadside (56.4 ± 27.3 µg m−3) (51.0 31.1 sites. lowest mean was observed site (39.8 22.2 m−3). Seasonal variations pPAHs thr...

In this study, Particulate Matter (PM) samples, collected during 2 summer and 2 winter months over a long-term period (1984–2012) at a suburban site in Athens (Greece), were used in order to examine the connection between Sahara dust long range transport events and mass concentrations of the aerosol mineral component, as well as the relative abundance of specific crustal components. As a result...

stimates of the health effects of air pollution are alarming , with up to 7 million attributable deaths worldwide each year. Although the pulmonary effects of air pollution are widely recognized, it is only in the last few decades that the adverse cardiovascular effects of air pollution have become apparent. Exposures to diesel exhaust, a prominent source of urban air pollution and a pollutant ...

The aim of this study is to analysis the performance of Robinia pseudoascacia (black locust tree) to accumulation some of heavy metals and compared with the concentration of these metals in falling dust Yazd highway green belt. In order to an experiment was conducted as factorial based on completely randomized design with four replications.The results showed that the concentration of, ...

House dust mite allergen exposure is a postulated risk factor for allergic sensitization, asthma development, and asthma morbidity; however, practical and effective methods to mitigate these allergens from low-income, urban home environments remain elusive. The purpose of this study was to assess the feasibility and effectiveness of physical interventions to mitigate house dust mite allergens i...

It has been suggested that exposure to elevated levels of endotoxin decreases the risk of allergic sensitization. The objective of our study was to analyze associations between house dust endotoxin levels and allergic sensitization in children. One hundred children with self-reported allergic diseases and 100 healthy children were randomly selected from a list of a previous prevalence study in ...

AIM To evaluate German cockroach (Blattella germanica) allergen levels in house dust and skin reactivity to German cockroach in adult atopic and non-atopic subjects in inland areas of Croatia. METHODS Blattella germanica group 2 (Bla g 2) allergen was measured using the enzyme-linked immunosorbent assay (ELISA) on test strips (Dustscreen(TM) test, Heska AG, Switzerland) in 94 house dust sampl...

the effect of automobile pollution was determined on chlorophyll content of four different tree species viz. azadirachta indica l., conocarpus erectus l., guiacum officinale l.and eucalyptus sp. growing along the roads of the city.  significant changes in the level of chlorophyll “a”, chlorophyll “b” and total chlorophyll “a+b” were found in the leaves of four tree species (a. indica, c. erectu...