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.
With the analysis model of control cost per-unit, the cost of air pollution control was accounted in Xi’an from 2000 to 2007 in this paper. Based on the accounting results, the gross amount and the structure of control cost were analyzed. Environmental economic indicators were used in analytical process, such as the virtual control cost, the index of pollution control cost deduction from GDP and the...
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.