This study examines the effect of a Needle Exchange Program (NEP) on the quantity and geographic distribution of discarded needles on the streets of Baltimore, Maryland, and presents methods to survey discarded needles in the community. A random sample of 32 city blocks located within high-drug-use census tracts, stratified by east and west sides of the city and by proximity to the NEP, was sel...

The objective was to determine if garnetting and raw cotton dusts differed in botanical composition. Estimates of dust composition were based on the contents of gross trash in cotton raw materials and the potential of each gross trash component to be converted into less than 10 mum particulate by a laboratory abrasion test. All types of garnetting dusts are predicted to contain a lower percent ...

Nowadays, trash has become a problem in the society and the ecosystem due to the way people get rid of it. Most of garbage is buried or burnt or even kept in places to which it does not belong. Big volumes of garbage thrown away and the methods used to store it cause air, water, and soil pollution. Fortunately, people can count on other methods to reduce the quantity of produced litter. An answ...