Abstract Air pollution is currently becoming a significant global environmental issue. The sources of air in Malaysia are mobile or stationary. Motor vehicles one the sources. Stationary originated from emissions caused by urban development, quarrying and power plants petrochemical. most noticeable contaminant Peninsular particulate matter (PM 10 ), highest contributor Pollution Index (API) com...

Denitrifying microbial communities and denitrification in salt marsh sediments may be affected by many factors, including environmental conditions, nutrient availability, and levels of pollutants. The objective of this study was to examine how microbial community composition and denitrification enzyme activities (DEA) at a California salt marsh with high nutrient loading vary with such factors....