Remote Zones Air Quality. Persistent Organic Pollutants: Sources, Sampling and Analysis

Concern about air quality has been rising since the Industrial Revolution and the so-called “Second Industrial Revolution” characterized by internal combustion engine, electrical technology and above all synthesis of new chemicals. Since then mankind has been facing the consequences of its thoughtless release of pollutants in atmosphere, consequences as reducing smog, acid rains and photochemical smog. Notwithstanding the seriousness of single episodes, these were local, or at most regional, phenomena. Nowadays, the variety of pollutants and the extent of pollution is greater than even in history, and air pollution problems are reaching up to global scale. In the last decades, it was established that manmade chemicals, such as polychlorinated biphenyls, chlorofluorocarbons and volatile chlorinated hydrocarbons, were present even in the remotest zones of the Earth, according to their volatility and half-life. This evidence stimulated the scientific community to monitor air quality of remote zones, areas considered a short time ago as uncontaminated. This chapter deals with different sampling and analysis techniques for persistent organic pollutants (POPs) in the atmosphere of remote zones. Features, sources and environmental fate of POPs are presented in the first section. The second section focuses on logistic and experimental difficulties connected to surveys in remote zones. The third section focuses on recent developments and improvements concerning sampling and analytical methods for POPs in air. The most significant findings on the presence of POPs in remote zones are shown in the last section

Indoor Air Quality. Volatile Organic Compounds: Sources, Sampling and Analysis

Since the 70s research has found in Europe and in the United States that individuals spend between 70 and 90% of their time indoors. Health studies have found that exposures to a variety of air pollutants indoors can be substantially higher than outdoors, even in urban environment. Volatile Organic Compounds (VOCs) are often more important, depending by their continue emission from many sources and their diffusion properties. In order to evaluate the occupants discomfort and health effects and developing guidelines and standards, Indoor Air Quality (IAQ) assessment and control is an essential step; IAQ assessment will complain: Sources, Sampling Methods, Analysis and Data Meanin

Edizione italiana di "Environmental Chemistry," di Stanley E. Manahan, Sixth Edition.

Ottobre 200

AMMONIACA COME GAS IONIZZANTE NELLA GC-MS-NCI DI PESTICIDI ORGANOFOSFATI

ADDAURA -MONDELLO (PALERMO

HPLC DETERMINATION OF BENZENE AND TOTAL AROMATIC FRACTION IN GASOLINE

ROM