Volume 9, Issue 1 (2013) | American Journal of Environmental Sciences

Numerical Modeling of Periodic Pumping Tests in Wells Penetrating a Heterogeneous Aquifer

Peter A. Fokker — 2013-01-13

American Journal of Environmental Sciences, Published online: 13 January 2013; doi:10.3844/ajessp.2013.1.13

This study investigated how to utilize multiple frequency components of pressure data from periodic pulse tests to estimate the intra-well permeability and compressibility distribution and also the pr...

Utilization of Recycled and Waste Materials in Various Construction Applications

Johnny Bolden — 2013-01-15

American Journal of Environmental Sciences, Published online: 15 January 2013; doi:10.3844/ajessp.2013.14.24

More production equals more waste, more waste creates environmental concerns of toxic threat. An economical viable solution to this problem should include utilization of waste materials for new produ...

Attitudes of Malaysian Extension Workers Towards Sustainable Agricultural Practices

Neda Tiraieyari — 2013-01-24

American Journal of Environmental Sciences, Published online: 24 January 2013; doi:10.3844/ajessp.2013.33.37

The challenge of producing enough food for growing population increasingly affected Malaysian agricultural sector. Intensive farming system and increase in fertilizer used by farmers has led the agric...

Emission Factors of CH₄ and CO₂ Emitted from Vehicles

Sutthicha Nilrit — 2013-01-29

American Journal of Environmental Sciences, Published online: 29 January 2013; doi:10.3844/ajessp.2013.38.44

The study of the Emission Factors (EF) of methane (CH4) and Carbon Dioxide (CO2) emitted from vehicle exhaust is the study of greenhouse gases that are crucial to climate change. These gases are part ...

Knowledge and Perceptions of Extension Workers on Sustainable Agricultural Practices

Neda Tiraieyari — 2013-02-02

American Journal of Environmental Sciences, Published online: 2 February 2013; doi:10.3844/ajessp.2013.45.50

Due to the expansion of crop productions there has been an increase in the fertilizers’ use by farmers in Malaysia. Recently Sustainable Agricultural Practices (SAP) is gaining attention within agri...

Development and Testing of an Ammonia Removal Unit from the Exhaust Gas of a Manure Drying System

A. E. Ghaly — 2013-02-16

American Journal of Environmental Sciences, Published online: 16 February 2013; doi:10.3844/ajessp.2013.51.61

The storage and handling of animal wastes is one of the main sources of ammonia gas emissions. Ammonia gas has a distinct, unpleasant odor and can become detrimental to the health of humans and animal...

Potential Zones of Peruvanthanam and Valiyathodu Sub-Watersheds of Manimala River Basin

Vadakkepurakkal Rekha — 2013-02-20

American Journal of Environmental Sciences, Published online: 20 February 2013; doi:10.3844/ajessp.2013.62.72

Groundwater is a dynamic and replenishable natural resource. But in hard rock terrains, its availability is of limited extent. In sub-watershed studies, remote sensing and GIS techniques have the adva...

The Impact of Climate Change Upon Winter Rainfall

Numan Shehadeh — 2013-02-24

American Journal of Environmental Sciences, Published online: 24 February 2013; doi:10.3844/ajessp.2013.73.81

Climatic models that project the impact of climate change upon rainfall in the Eastern Mediterranean region predict that the negative impact will be more pronounced upon winter rainfall rather than Fa...

Serpentine Soils, Adverse Habitat for Plants

Mahsa Tashakor — 2013-02-26

American Journal of Environmental Sciences, Published online: 26 February 2013; doi:10.3844/ajessp.2013.82.87

The unpleasant effect of serpentine soil on plant life has been a topic of many studies for several decades. Infertility and flora selectivity nature of serpentine soils are the features, which made t...