Sources of metal pollution in the urban atmosphere (A case study: Tuzla, Istanbul)

Abstract

In this study, İstanbul-Tuzla Region atmosphere was selected as the working area for atmospheric pollution. Although the study area seems too local, this region contains shipyards and shipyard-related side product industries. It is also surrounded by aluminum (ASSAN) and copper (SARKUYSAN) facilities and tannery organized industrial district. For determined the atmospheric inputs, the sample collection was carried out as monthly in 2010. Particulate matter was filtered from aerosols via a high volume air sampler. The collected 46 ambient air samples were analyzed for Cr, Fe, Cu, Zn, Cd, Pb and Al using Atomic Absorption Spectrometry (AAS), Flame unit. Additionally, the volume of the air was drawn and meteorological data recorded.Average individual heavy metal concentrations were found as Cd (0.06 ng/m3) < Cr (0.09 ng/m3) < Zn (0.21 ng/m3) < Pb (0.23 ng/m3) < Cu (0.48 ng/m3). The concentrations of crustal elements Fe and Al were changed between 5.48 ng/m3, 74 ng/m3 and 14 ng/m3, 284 ng/m3 respectively during the sampling period. Except Cr and Fe anthropogenic contribution was seen on the concentrations of Zn, Cu, Pb and Cd in an increasing order. While the crustal element Fe was not show an appreciable change in concentration, but the Al concentration was display an important change in concentration depending on the wind transportation.

The role of Serendipita indica and Lactobacilli mixtures on mitigating mycotoxins and heavy metals’ risks of contaminated sewage sludge and its composts

“…The efficacy of the LAB mixture and S. indica in removing arsenic was the highest. Unfortunately, despite the success of both the LAB mixture and S. indica in reducing concentrations of heavy metals in raw sludge, the concentrations of these heavy metals, except Cd and Pb, are still high compared to the permissible levels whether in air 50 , plants, or soil. On the other hand, for the treated MSS which could be added to soil to fertilize woody trees, the biological treatment of MSS with S. indica was more effective in reducing arsenic (As) than the LAB mixture.…”

Karakterisasi Sifat Magnetik Daun Untuk Analisa Polusi Udara: Sebuah Tinjauan Ulang

“…Polusi udara dapat menjadi faktor penyebab masalah kesehatan masyarakat yang paling penting di daerah perkotaan, dimana partikel tersuspensi antropogenik di atmosfer berkaitan dengan banyak polutan di udara [3]. Modernisasi dan industrilisasi di negara-negara berkembang telah menyebabkan meningkatnya penggunaan bahan bakar fosil dan polutan [1][3] [6]. Bahkan di negara berkembang kondisi ini lebih mengkhawatirkan sejalan dengan peningkatan jumlah penduduk yang signifikan serta industrilisasi yang tidak berkelanjutan [7].…”

Air Pollution and Public Health: A PRISMA-Compliant Systematic Review

“…The most frequent species are lead (Pb 2+ ), mercury (Hg 2+ ), manganese (Mn 2+ ), chromium (Cr 3+ , Cr 6+ ) and arsenic (As 3+ , As 5+ ). Heavy metals often pollute soil and water reservoirs and can enter the food chain [17,18] Many species have demonstrated pro-carcinogenetic mechanisms: arsenates (AsO 4 3− ) and arsenites (AsO 3 3− ) are carcinogenic for bronchial, renal and urinary bladder epithelia [19], while chromium induces cancer in the lung and stomach [20]. DNA repair malfunctions and pro-and anti-apoptotic gene imbalances are the most frequent genic mutations induced by heavy metals [21,22].…”