Abstract
Catalysis has manifested its role as a fundamental tool in pollution prevention. While catalysis has long been utilized in increasing efficiency, yield, and selectivity, it is now also recognized as accomplishing a wide range of green chemistry goals. Air pollutants produced by industrial and man-made emissions possesses a unique property that it could affect regional and global receptors. Measuring and defining the levels of pollutants and its sources whether it is local, regional or global should precede the precautions and measures that should be taken to reduce the levels of a particular pollutant. In this article the air quality at the Black Sea region of Turkey is being discussed. Moreover, it endeavors to locate the possible sources of the different pollutants at local, regional and long range transported scales. About 196 rainwater samples were collected over the Black Sea region of Amasra between 1995-1999 and analyzed for major and trace ions. Although statistical tools do provide information on the type of sources and processes affecting the site, they do not provide information on where these sources are located. A back trajectory has to be included in the evaluation to incorporate geographical information in analytical results. To compute the PSCF for each ion the back trajectories were computed using ECMWF model, which is an isentropic 3-D model. Then number of 1 hour-long segment of the 3.5 daylong trajectories in each defined sub-region is determined. This study shows that, the Black Sea region receives different amounts and types of anthropogenic pollutants via long-range transport according to trajectory models. The highest PSCF values for H + are calculated for central Europe and Russia have fairly high contribution to observed free acidity in our samples. The main source areas for SO 4 2- were found to be central Europe and Northwestern Turkey (Marmara region or Istanbul–Kocaeli industrial area). Normal 0 false false false RU X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:Обычная таблица; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin-top:0cm; mso-para-margin-right:0cm; mso-para-margin-bottom:8.0pt; mso-para-margin-left:0cm; line-height:107%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:Calibri,sans-serif; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:Times New Roman; mso-bidi-theme-font:minor-bidi; mso-fareast-language:EN-US;} Catalysis has manifested its role as a fundamental tool in pollution prevention. While catalysis has long been utilized in increasing efficiency, yield, and selectivity, it is now also recognized as accomplishing a wide range of green chemistry goals. Air pollutants produced by industrial and man-made emissions possesses a unique property that it could affect regional and global receptors. Measuring and defining the levels of pollutants and its sources whether it is local, regional or global should precede the precautions and measures that should be taken to reduce the levels of a particular pollutant. In this article the air quality at the Black Sea region of Turkey is being discussed. Moreover, it endeavors to locate the possible sources of the different pollutants at local, regional and long range transported scales. About 196 rainwater samples were collected over the Black Sea region of Amasra between 1995-1999 and analyzed for major and trace ions. Although statistical tools do provide information on the type of sources and processes affecting the site, they do not provide information on where these sources are located. A back trajectory has to be included in the evaluation to incorporate geographical information in analytical results. To compute the PSCF for each ion the back trajectories were computed using ECMWF model, which is an isentropic 3-D model. Then number of 1 hour-long segment of the 3.5 daylong trajectories in each defined sub-region is determined. This study shows that, the Black Sea region receives different amounts and types of anthropogenic pollutants via long-range transport according to trajectory models. The highest PSCF values for H+ are calculated for central Europe and Russia have fairly high contribution to observed free acidity in our samples. The main source areas for SO 4 2- were found to be central Europe and Northwestern Turkey (Marmara region or Istanbul–Kocaeli industrial area). Normal 0 false false false RU X-NONE X-NONE <w:LsdException Locked=false Priority=
Highlights
The driving force behind much of the research in the atmospheric sciences today is the recognition that anthropogenic activity may be altering Earth’s climateScientists have discovered that air pollution from the burning of fossil fuels is the major cause of acid rain
This study shows that, the Black Sea region receives different amounts and types of anthropogenic pollutants via long-range transport according to trajectory models
During the period between April 1995 and December 1999, the chemical characteristics of the rainwater and the aerosol have been studied at Amasra, an agricultural area located in the Black Sea region
Summary
The driving force behind much of the research in the atmospheric sciences today is the recognition that anthropogenic activity may be altering (perturbation) Earth’s climateScientists have discovered that air pollution from the burning of fossil fuels is the major cause of acid rain. Acid rain as it is commonly known, occurs when emissions of sulfur dioxide (SO2) and oxides of nitrogen (NOx) react in the atmosphere with water, oxygen, and oxidants to form various acidic compounds. This mixture forms a mild solution of sulfuric acid and nitric acid. The recognition that man has started to perturb the atmosphere on a global scale has provoked wide spread attention to this problem. The discovery of the ozone hole and the world wide discussion of the greenhouse effect have generated a public interest for atmospheric chemical processes, environmental mechanisms and equilibria. The basis for any such discussion is, rather rudimentary due to a lack of relevant analytical data in many areas around the globe [1]
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