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Potential Application of Synchronous Fluorescence Spectroscopy to Identification of PAHs in Airborne PM2.5 | ||
| Pollution | ||
| دوره 8، شماره 2، تیر 2022، صفحه 637-656 اصل مقاله (762.77 K) | ||
| نوع مقاله: Original Research Paper | ||
| شناسه دیجیتال (DOI): 10.22059/poll.2022.327680.1144 | ||
| نویسندگان | ||
| Homdutt Sharma* 1؛ Vinod Kumar Jain2؛ Zahid Husain Khan3 | ||
| 1Department of Physics, Amity Institute of Applied Sciences, Amity University, Sector 125, Noida - 201 313, India | ||
| 2Tezpur University, Tezpur - 784028, Assam, India | ||
| 3Department of Physics, Jamia Millia Islamia, New Delhi - 110025, India | ||
| چکیده | ||
| A simple and rapid method for the highly sensitive determination of polycyclic aromatic hydrocarbons (PAHs) from airborne fine particulate matter (PM2.5) in an urban environment of Delhi was developed. The target compounds were 10 of the 16 United States Environmental Protection Agency (US-EPA) priority PAHs: fluoranthene, pyrene, chrysene, benzo(a)anthracene, benzo(b)fluoranthene, benzo(k)fluoranthene, benzo[a]pyrene, dibenzo(ah)anthracene, benzo(ghi)perylene, indeno(1,2,3-cd)pyrene. For collecting the samples, the following two locations in Delhi (India) were chosen: ITO and Okhla Industrial Area. Two sets of samples at these locations of were collected for the purpose of investigation. The fine particulate matter samples were collected on glass fiber filter papers for 24h, from which the PAHs were extracted using dichloromethane (DCM) and hexane using ultrasonication method. Comparison of the characteristic emission of spectra of PAHs with standard spectra indicated the degree of condensation of aromatic compounds present in the investigated mixtures. However, this identification could be more effective with the use of the respective values of Δλ parameter for each particular component of the mixture. It has been found that the concentration of the PAHs is maximum during the winter season and minimum during the summer and monsoon seasons at both the locations. | ||
| کلیدواژهها | ||
| Air pollution؛ Polycyclic aromatics؛ Particulate matter؛ Urban environment؛ Delhi | ||
| مراجع | ||
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