The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Based on the acid rain data measured at Shapingba weather station in Chongqing from 1993 to 2007 and the emission data of SO2 in Chongqing, Guizhou and Sichuan, the acid rain change trend and its relationship with SO2 emission were analyzed. The results indicated that in the past 15 years, the change trend of the pH value of the precipitation in Chongqing changed between 3.8 and 4.5. The annual variation...
Abstract-this paper discusses advantages and disadvantages of Gaussian model and Harmful duration and area estimation model for environmental accident Prediction in the atmosphere, then compare with two methods of picture characterization. The picture characterization of Harmful duration and area estimation model based on GIS gets space-time distribution as well as the real-time information about...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.