منابع مشابه
Public Policies for Lead Recycling
Policies that encourage recycling may be used to reduce environmental costs from waste disposal when direct restrictions on disposal are difficult to enforce. Four recycling policies have been advanced: (i) taxes on the use of virgin materials; (ii) deposit/refund programs; (iii) subsidies to recycled material production; and (iv) recycled content standards. This study analyzes the structure of...
متن کاملChildhood Lead Exposure from Battery Recycling in Vietnam
BACKGROUND Battery recycling facilities in developing countries can cause community lead exposure. OBJECTIVE To evaluate child lead exposure in a Vietnam battery recycling craft village after efforts to shift home-based recycling outside the village. METHODS This cross-sectional study evaluated 109 children in Dong Mai village, using blood lead level (BLL) measurement, parent interview, and...
متن کاملPast, present and future of lead battery recycling
Even today, the use of Lead-acid batteries is projected for the next 50 years. On the other hand, the legislative trend concerning human health and the environment makes evident the need for future innovation on recycling technologies. For this reason, the entire world is working, in the short term, in optimizing and adapting technologies, which today we consider BAT (Best Available Technologie...
متن کاملThe Source of Airborne Lead: Recycling Pb-Contaminated Soils
Starting in the 1970s, federal regulatory control and eventual elimination of lead-based “antiknock” additives in gasoline decreased the level of airborne Pb in the USA by two orders-ofmagnitude [1]. Blood lead levels of the USA population decreased correspondingly [2,3]. Despite this dramatic improvement in both exposure risk and body burden of Pb, the sources and health threat of the low leve...
متن کاملTableau Recycling
In this paper we improve a model checking algorithm based on the tableau method of Stifling and Walker. The algorithm proves whether a property expressed in the modal mu-calculus holds for a state in a finite transition system. It makes subsequent use of subtableaux which were calculated earlier in the proof run. These aubtab|eaux are reduced to expressions. Examples show that both size of tabl...
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ژورنال
عنوان ژورنال: Shigen-to-Sozai
سال: 1997
ISSN: 0916-1740,1880-6244
DOI: 10.2473/shigentosozai.113.972