Efficient remediation of heavily As(III)-contaminated soil using a pre-oxidation and stabilization/solidification technique.

The high mobility of As(III) makes it difficult to remediate heavily As(III)-contaminated soil. A novel remediation technique that combines pre-oxidation and stabilization/solidification (PO + S/S) is proposed in this study to remediate heavily As(III)-contaminated soil. After oxidizing As(III) in the contaminated soil using Fenton's reagent, FeCl·6HO was used as a chemical stabilizing agent to reduce the toxicity and mobility of As.

Influence of humic acid and bovine serum albumin on colloid-associated heavy metal transport in saturated porous media.

Colloid-facilitated contaminant transport in porous media has been widely observed in laboratory and field studies. In this study, the influence of two dissolved organic matters (DOMs), humic acid (HA) and bovine serum albumin (BSA), on the colloid-associated heavy metal transport, was investigated. Soil colloids with particle sizes <2 μm were prepared from bentonite.

Association between sleep time and depression: a cross-sectional study from countries in rural Northeastern China.

Objective To investigate the current situation of sleep status and examine its association with depression among counties in rural areas of Liaoning Province, China. Methods This cross-sectional study was conducted from January 2012 to August 2013 in Northeast China. A total of 11,276 subjects aged ≥35 years were surveyed and completed the Patient Health Questionnaire-9; each participant answered questions about their sleep duration.

Association between elevated serum alanine aminotransferase and cardiometabolic risk factors in rural Chinese population: a cross-sectional study.

Background: Elevated alanine aminotransferase (ALT) levels may be associated with metabolic syndrome and cardiovascular diseases. This study aimed to investigate the association between elevated ALT levels and cardiometabolic risk factors in a rural Chinese population.

Methods: This was a cross-sectional study conducted from July 2012 to August 2013, including 11,573 subjects (5,357 men and 6,216 women) aged ≥35 years in rural areas of Liaoning Province.

Life cycle water consumption and wastewater generation impacts of a Marcellus shale gas well.

This study estimates the life cycle water consumption and wastewater generation impacts of a Marcellus shale gas well from its construction to end of life. Direct water consumption at the well site was assessed by analysis of data from approximately 500 individual well completion reports collected in 2010 by the Pennsylvania Department of Conservation and Natural Resources. Indirect water consumption for supply chain production at each life cycle stage of the well was estimated using the economic input-output life cycle assessment (EIO-LCA) method.

Association between child and adolescent obesity and parental weight status: a cross-sectional study from rural North China.

Objective: To investigate the relationship between child and adolescent obesity, and parental weight status.

Methods: Height and weight were measured in Chinese children and adolescents aged 6-17 years old. Information was collected concerning parental weight and height, and possible covariates, using a questionnaire.

Prehypertension in children and adolescents: association with body weight and neck circumference.

Objective: The present study was undertaken to investigate the role of neck circumference (NC) in predicting prehypertension in children and adolescents.

Methods: We conducted a cross-sectional study including 6,802 children and adolescents (3,631 boys and 3,171 girls) aged 5-18 years. Main anthropometric data and related information were collected.