kerman’s air pollution situation
نویسندگان
چکیده
air pollution in large cities is very important from health and economic points of views. in a city, air pollution has direct relationship with the topography, climate, population, economic situation and the degree of industrialization. therefore, for a survey about kerman's air pollution, 13 stations were chosen for determination of so2, no2 and co, and 14 stations to assess concentration of suspended particles. specific autoanalyser electrodes were used for determination of gas materials and hi-vol sampler for suspended particles. sampling and tests were run everyday of weeks, holiday and nonholidays, four seasons of a year, 1977 iranian calendar (march 1998-1999). the mean yearly concentrations of so2, no2 and co in kerman metropolitan area were 0.055, 0.5 and 5.19 ppm, respectively, higher than standards in most of the stations. industries are biggest suspects. daily (24 h) concentration of suspended particles in kerman varied between 100 to 756 micrograms per cubic meter. the yearly mean of sp was 348 in kerman metropolitan area, much higher than who standard, but most of it was dust. as the final conclusion, authorities should pay necessary attention to the kerman ambient air quality. the standard for suspended particles in cities such as kerman, with dry, semi-desert climate, having desert winds with running sand, should be revised.
منابع مشابه
Indoor air pollution.
Although official efforts to control air pollution have traditionally focused on outdoor air, it is now apparent that elevated contaminant concentrations are common inside some private and public buildings. Concerns about potential public health problems due to indoor air pollution are based on evidence that urban residents typically spend more than 90 percent of their time indoors, concentrati...
متن کاملAnthropogenic air pollution sources
What one experiences today as atmosphere is a transient snapshot and result of its evolutionary history. Much of the development and present status was explained based both on scientific knowledge, and combined with established facts, even speculation. The planet Earth was formed around 4600 million years ago by the gravitational accretion of relatively small rocks and dust, within the solar ne...
متن کاملAir Pollution Risk
This article reviews the literature on health effects of air pollution, with a primary focus on time series studies but also covering prospective studies and case-crossover designs. It also covers some of the controversies created by these studies and concludes with a brief review of air pollution standards in the U.S.
متن کاملمنابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
iranian journal of public healthجلد ۲۸، شماره ۱-۴، صفحات ۶۵-۷۲
میزبانی شده توسط پلتفرم ابری doprax.com
copyright © 2015-2023