Application of a new combined fractionation technique (CFT) to detect fluorophores in size-fractionated hydrophobic acid of DOM as indicators of urban pollution.

Significant number of accidental water pollution incidents occurred during the past decades in China, often having transboundary impacts, including the high profile Songhua River toxic chemical spill in November 2005, and drinking water source pollution by algae in the Tai Lake, Wuxi in May 2007. Over half of all river sections monitored for water quality are rated as being unsafe for human contact, and this pollution is estimated to cost several per cent of GDP. If not immediately and effectively controlled, pollution incidents caused by accidental releases or cumulative pollution can worsen water shortages and scarcity problems. The environmental pollution accidents can cause great danger, and there are many potential pollution sources. From the Comparison with the advanced and mature experience by system, mechanism, the article expounds some ideas to improve and strengthen emergency disposal and prevention system for water pollution accidents. It identifies areas for improvement and presents policy recommendations for institutional reform, improving regulations; and strengthening the implementing capacity to maximize the use of existing institutions, regulations and other management resources.

Water Pollution Emergencies in China: Actualities, Prevention and Response

Putting the user in charge of their online identity is a necessary precondition for privacy on the web. This requires the ability to manage identifying information that remote parties store in data repositories on the user's device. We performed a crawl of thousands of popular websites with the intention of assessing the prevalence of various problematic patterns of client-side data storage. The focus of this paper is on techniques that make use of the browser cache, especially when they impede active identity management by the user. From these results, we derive a novel privacy-enhancing policy for client-side data storage - self-destructing identifiers - improving the current defacto standard. This policy has already seen some adoption in practice in the form of a Firefox add-on that we developed as a proof of concept.

Zombie-cookies: Case studies and mitigation

Prototype of the Monitoring System and Prevention of River Water Pollution Based on Android

The spatial distribution and abundance of microplastics in lake waters and ice during ice-free and ice-covered periods.

Analysis on advances and characteristics of microplastic pollution in China's lake ecosystems.

Safe and reliable drinking water is vital to every community. But Water pollution incidents have taken place in China frequently resulting in an enormous economic loss. How to solve the problem becomes a significant issue to scrub the deleterious effects of pollution accidents. So the establishment of response models of water pollution accidents in Wuhan city is necessary in order to enhance rapidity, effectiveness and accuracy of emergency commanding, and to improve the level of scientific decision-making. As Emergency pollution management system is a complete system composed of data layer, model layer, the system interface layer and network layer. It also has early warning functions such as the real-time monitoring of water quality and water quality prediction of water pollution accidents. Early Warning and Emergency Response system for Water Pollution Accidents in Wuhan City, China shows a quick-acting and accurate numerical method to calculate the value of pollutant concentration in a short time.

Early Warning and Emergency Response System for Water Pollution Accidents in Wuhan City, China

Water pollution incidents have taken place in China frequently resulting in an enormous economic loss. How to solve the problem timely, effectively and efficiently becomes a significant issue to scrub the deleterious effects of sudden pollution accidents. Emergency pollution incident management system is a complete system composed of data layer, model layer and the system interface layer. It has early warning functions such as the real-time monitoring of water quality and prediction of pollution emergencies. To take Wuhan city for example, this system realize the function of attribute query, mouse fixed-point tracking, input of incidents site and output of transportation process as well as extension of pollutants cluster from time to time. It can also query the water quality in different time. The system can be enhanced profoundly and will shorten the response time in a large scale. The successful control methods provide references and technical support for watershed management of pollution accidents in other area.

The Construction for Guarantee and Ability of Early Warning and Response of Water Pollution Emergencies in Wuhan City, China

Microplastics are a new type of contaminant, widely defined as fragmented plastics with the longest dimension or diameter less than 5 mm, that are widely distributed, difficult to degrade, and easily adsorb other pollutants. Estuaries are key habitats where terrestrial microplastics flow in water runoff and import into the ocean. The ubiquitous use of plastics has resulted in a massive amount of plastic waste that is released and accumulated in bay ecosystems, posing serious ecological impacts. The study of microplastic contamination in Hangzhou Bay, the estuary of the Qiantang River, has important theoretical value in ecology and environmental science. Microplastic contamination in the tidal flats and organisms of Hangzhou Bay is serious and microplastic characteristics (type, size, and polymer type) in organisms were significantly correlated with those in the environmental media. Spatial autocorrelation was found in the abundance of microplastics in marine and tidal flat sediments of Hangzhou Bay, China, but no spatial autocorrelation was found in the sediment environment as a whole. The microplastic abundance in each organism in this study was not statistically correlated by weight or by individual count with its corresponding trophic level (P = 0.239 > 0.05; P = 0.492 > 0.05, respectively). Our study suggests a coupling relationship of microplastic contamination between organisms and the environment and can provide essential data and a scientific foundation for the study of microplastics pollution in Hangzhou Bay, as well as provide important evidence for the ecological and health risk assessment of microplastics.

Bei Huang

Papers

Analysis on advances and characteristics of microplastic pollution in China's lake ecosystems.

Early Warning and Emergency Response System for Water Pollution Accidents in Wuhan City, China

The Construction for Guarantee and Ability of Early Warning and Response of Water Pollution Emergencies in Wuhan City, China

Coupling of microplastic contamination in organisms and the environment: Evidence from the tidal flat ecosystem of Hangzhou Bay, China.