11 12 The biological treatment of spent synthetic metalworking fluid (MWF) has been investigated in many studies, 13 with most reporting the presence of un-degraded components in the residual waste. In this study, we 14 investigated a hybrid approach to waste treatment of spent MWF, involving both physical treatment and 15 microbial degradation. The effect on biological degradation, of the remo...

Solanum nigrum L. has a delightful prospect as hyperaccumulation plant for cadmium pollution remediation, and microplastic is new type of that received wide attention. In this study, the effects polyethylene microplastics (LDPE) (0.135, 0.27, 0.81 1.35 mg·kg-1) (20 on growth indexes soil physical chemical properties were investigated in 17-day microcosm experiment. The results showed single LDP...

In this paper, it is first demonstrated that Aluminum (Al) contamination present; H2O2 plasma sterilization widely used for of surgical instruments. The amount Al can reach as high 7.9 × 1012 atoms/cm2. well known a harmful element to human health, which may damage bones and the brain. During use instruments after in surgery, contaminated enter reside body threaten health even life safety. Ther...

Understanding the differences in the risk judgments of residents of industrial communities potentially provides insights into how to develop appropriate risk communication strategies. This study aimed to explore citizens' fundamental understanding of risk-related judgments and to identify the factors contributing to perceived risks. An exploratory model was created to investigate the public's r...

Context. The Planck satellite, scheduled for launch in 2007, will produce a set of all sky maps in nine frequency bands spanning from 30 GHz to 857 GHz, with an unprecedented sensitivity and resolution. Planets, minor bodies and diffuse interplanetary dust will contribute to the (sub)mm sky emission observed by Planck, representing a source of foreground contamination to be removed before extra...

The effect of tributary inflows on metal concentrations in <63-μm sediments and benthic insects was examined on two scales (380 km and <2 km) in a river impacted by mining. A dilution-mixing model effectively described largescale dispersion of Cd, Cu, and Pb in the sediments of the river. Input of metal from contaminated flood plains may introduce additional contamination in the middle reaches ...

This article aims to analyze the contamination of water and bottom sediment at Arroio Moinho (Mill Stream), in Porto Alegre (Rio Grande do Sul, Brazil). From two sample collections, a series diagnostic measurements were carried out, such as: a) physical-chemical biological analysis water; b) quality index (WQI); c) metal contamination, granulometric mineralogical analyses sediment; d) total org...