China Environmental Monitoring and Assessment Network: emc.cn/ National Marine Environmental Monitoring Center:/Standards and news related to environmental monitoring can be found on the above three websites. If you are a college student, a researcher, or a member of a well-known scientific research institution. Then you can consult the literature about environmental monitoring through the electronic library or electronic periodical purchased by your unit. For example, academic search reading show, superstar digital library, China HowNet, Chongqing Weipu and so on.