On the 6th, the reporter learned from the Ministry of Ecology and Environment that the Ministry of Ecology and Environment has recently launched the third baseline survey of marine pollution and conducted a spring voyage sea survey, aiming to understand the latest information on the state of China's marine ecological environment and comprehensively grasp the basic state and changing laws of the marine ecological environment. The relevant person in charge of the Ministry of Ecology and Environment introduced that China conducted the first and second national baseline surveys of marine pollution from 1976 to 1982 and from 1996 to 2000, respectively. The three basic investigations organized by the Ministry of Ecology and Environment this time are not only necessary for scientific understanding of the trends and objective laws of China's marine ecological environment changes since the new century, but also for systematically grasping the "zero point" data of China's marine ecological environment in the new era, and determining the baseline and starting point of the construction of a beautiful bay. They are essential for accurately assessing the new situation faced by the construction of marine ecological civilization and ecological environment protection in the current and future periods New issues and tasks are of great significance and will provide important support for deepening the comprehensive governance of key sea areas, comprehensively promoting the construction of beautiful bays, and promoting the improvement of China's marine ecological environment from quantitative to qualitative changes. The three basic investigations closely revolve around the overall idea of "finding out the family background, discovering problems, analyzing causes, and proposing countermeasures", with a focus on nearshore waters and 283 bays. The main goals are to understand the background status of various pollutants in the environmental media of the waters under China's jurisdiction, and to finely grasp the characteristics of the ecological environment and human activities in each bay. The organization and implementation are unified, time nodes are unified, technical specifications are unified, and quality control requirements are unified Unified data submission and integration of results to form systematic investigation and evaluation results. (New News Agency)