Hydrodynamics and water quality of the Hongze Lake in response to human activities

Environmental Science and Pollution Research - The hydrodynamics and water quality of a lake in response to human activities is an important yet poorly understood issue. In this study, the...     

Microalgal-bacterial granular sludge process outperformed aerobic granular sludge process in municipal wastewater treatment with less carbon dioxide emissions

Environmental Science and Pollution Research - The aerobic granular sludge (AGS) process and microalgal-bacterial granular sludge (MBGS) process were comparably applied for municipal wastewater...     

Safety evaluation and ibuprofen removal via an Alternanthera philoxeroides-based biochar

Environmental Science and Pollution Research - Pharmaceutical and personal care products (PPCPs) are a representative class of emerging contaminants. This study aimed to investigate the PPCP...     

Nickel carcinogenesis mechanism: cell cycle dysregulation

Environmental Science and Pollution Research - Nickel (Ni) is a widely distributed metal in the environment and an important pollutant due to its widespread industrial applications. Ni has various...     

Characteristics of colloids and their affinity for heavy metals in road runoff with different traffic in Beijing,China

The characteristics of colloids in urban road runoff with different traffic in Beijing, China, such as concentration, particle size, chemical property, and affinity for heavy metals were determined. The concentration of colloids was high, and an evident first flush effect was found in the runoff of road with heavy traffic. A large portion of colloids were distributed in the range of 1–10 μm. Traffic activity, rainfall intensity, and time of sample collection would not change the size distribution of colloids in the road runoff. The chemical property of colloids in the road runoff would be influenced by the soil erosion nearby green space, causing the content of organic colloids was high. The correlation coefficient between the concentration of colloids in colloidal fractions and the concentration of heavy metals (Cu, Zn, Cd, Pb, Fe, and Mn) in the road runoff with different traffic decreased with the same sequence from 0.02–0.2 μm, 0.2–0.45 μm, 0.45–1 μm, to 1–10 μm, suggesting that the heavy metals had stronger affinity for the colloids with small size. The concentration of Cu, Pb, and Zn exhibited significant correlations with the concentration of organic colloids in the road runoff. More aggregated spherical particles were found in the TEM image of the road runoff with heavy traffic. Zeta potentials and RMV data showed that the colloids with smaller size and the colloids in the road runoff with lighter traffic were much more stable.

     

劳动争议仲裁管辖探析

劳动争议发生后,需要向劳动争议仲裁委员会申请仲裁的,究竟应向哪一级、哪一个劳动仲裁委员会申请仲裁;各级争议仲裁委员会、同级仲裁委员会处理劳动争议案件的分工和权限如何确定,这就涉及到劳动争议仲裁管辖的问题.     

膜分离技术处理高浓度味精废水试验研究

利用膜分离技术，将高浓度味精废水分离为数量不等的滤过水和浓缩水，浓缩水可再次开发利用，滤过水可直接进行生化处理，使外排废水达到国家规定标准。     

飞机字符显示的编码方式

着重论述了各类单个字符及显示格式的编码方式，有些编码方式在实际应用中已得证实，有些仍待研究解决。只有不断探索，才能在“人－机－环”系统中，使飞行员和“机器”能有效而可靠地工作，即“人的特性”与“机器”能有效配合，更好地发挥飞行员的技术和战术水平。由此国军标也将随着科学技术的进步而更加充实、完善、先进、合理。     

Effects of environmental contaminants on fertility and reproductive health

Recent research indicates that the human infertility rate is increasing. Although various reasons have been hypothesized for the growing infertility rate, environmental contaminants are potentially important causal agents associated with this change. Chemical contaminants are widespread throughout our environment and human exposure is virtually unavoidable. The overall contribution of environmental exposure to infertility is unknown, but studies involving occupational exposure, together with results from animal experiments, suggest that environmental contaminants may adversely affect fertility. We reviewed the adverse effects of environmental exposure on fertility and related reproductive outcomes. Environmental contaminants covered in this review include heavy metals, organic solvents, pesticides and endocrine disrupting chemicals. It is hoped that this review will highlight the need for further research in this area.     

海洋工程建设对连云港近海环境因子和浮游植物的影响

为了明确海洋工程建设对连云港近海环境因子和浮游植物的影响,于2009年5月（海洋工程建设前）和2016年同期（海洋工程建成后）前后两次对连云港近海叶绿素a（Chl a）含量、浮游植物群落结构和环境因子的空间分布特征进行了综合调查.结果显示,海洋工程建成后,调查海域水环境发生明显变化,近岸海域出现一个明显的高温区,与离岸海域温差达3℃;营养盐浓度明显降低,尤其是可溶性硅（DSi）,平均浓度降低了70%.Chl a浓度和浮游植物生物量显著升高,群落结构变化明显,由硅藻占优势转变为硅、甲藻共同占优势.海洋工程建设前优势度较高的星脐圆筛藻（Coscinodiscus asteromphalus）和夜光藻（Noctiluca scientillans）占比明显降低,中肋骨条藻（Skeletonema costatum）优势度明显升高.冗余分析（RDA）分析显示,海洋工程建设前化学需氧量（COD）、可溶性无机氮（DIN）和盐度（负相关）是影响浮游植物群落结构的主要因素;海洋工程建设后温度的影响明显升高;温度、BOD₅和DO的增加可能是促使春季浮游植物增加的主要因素.