data envelopment analysis (dea) measures the relative efficiency of a homogenous set of decision-making units (dmus) when multiple inputs and outputs are present. the deabased malmquist productivity index measuring the productivity change of dmus over time has proven itself to be a valid tool to compare group performance. however, in the previous models developed for this purpose, it was suppos...

background: in this study, measurement of indoor radon and its progeny levels was carried out in gas turbine power station in haryana ( india ), where natural gas is used as fuel. for comparison, the results of a study carried out in thermal power plant in haryana are also presented. radon being a ubiquitous air pollutant has global impact and its monitoring in the environment at work places is...

background: the objectives of this paper are three folds. first, an integrated framework for designing and development of the integrated health, safety and environment (hse) model is presented. second, it is implemented and tested for a large gas refinery in iran. third, it is shown whether the total ergonomics model is superior to the conventional ergonomics approach. this study is among the f...

Proceedings of an International workshop on the promotion and use of benthic tools for assessing the health of coastal marine ecosystems Proceedings of an International workshop on the promotion and use of benthic tools for assessing the health of coastal marine ecosystems Disclaimer The designation employed and the presentation of the material in this document do not imply the expression of an...

—Nonpoint source pollution in the form of stormwater runoff is one of the most important emerging threats to ecosystems along the coastal margins of the United States. A wide diversity of potentially toxic chemicals is commonly found in stormwater. These include the various pesticides, petroleum hydrocarbons, heavy metals, and other common contaminants that originate from commercial, industrial...

Discussions of the coastal environment and its health can be improved by more precise use of terms and clarification of the relationship, if any, between the health of ecosystems and the risks to human health. Ecosystem health is seldom defined and, in any case, has to be regarded in different terms than human health. Ecosystem health should embody both the structure and function of the ecosyst...

This chapter presents the Late Quaternary neo-tectonic movement in the Pearl River Delta (PRD) region of China and its effects on the coastal sedimentary environment. Taking the Xilin Hill fault as the example, we have explained the reason of the PRD formation, inferred its interactions with local/regional climate and sea-level changes, and analyzed the evolution of the PRD formation and its co...

More than half the world's human population lives within 100 km of the coast, and that number is expected to increase by 25% over the next two decades. Consequently, coastal ecosystems are at serious risk. Larger coastal populations and increasing development have led to increased loading of toxic substances, nutrients and pathogens with subsequent algal blooms, hypoxia, beach closures, and dam...

1Shandong Provincial Key Laboratory of Coastal Zone Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, ChunHui Road 17, Yantai, Shandong 264003, PR China 2Key Laboratory of Forest Ecology and Environment of the State Forestry Administration, Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Wan Shou Shan, Beijing ...