Plasticizers and bisphenol A in Adyar and Cooum riverine
Plasticizers and bisphenol A in Adyar and Cooum riverine sediments, India: occurrences, sources and risk assessment Adyar and Cooum, the two rivers intersecting Chennai city, are exposed to serious pollution due to the release of large quantities of dumped waste, untreated wastewater and sewage.
Plasticizers and bisphenol A in Adyar and Cooum riverine
Σ 7 plasticizers (PAEs + DEHA) in the Adyar riverine sediment (ARS) and Cooum riverine sediment (CRS) varied between 51.82–1796 and 28.13–856 ng/g, respectively. More than three-fourth of Σ 7 plasticizers came from bis (2-ethylhexyl) phthalate (DEHP), in accordance with the high production and usage of this compound.
Plasticizers and bisphenol A in Adyar and Cooum riverine
well as a secondary emission source for plasticizers and BPA, there is a paucity of data concerning the sediment pollution from Chennai city. Hence, we have monitored plasticizers (six PAEs and DEHA) and BPA in the Adyar riverine sediment (ARS) and Cooum riverine sediment (CRS) with the following objectives: (1) to study the spatial
Plasticizers and bisphenol A in Adyar and Cooum riverine
Σ7plasticizers (PAEs + DEHA) in the Adyar riverine sediment (ARS) and Cooum riverine sediment (CRS) varied between 51.82–1796 and 28.13–856 ng/g, respectively. More than three-fourth of...
Surveillance of plasticizers, bisphenol A, steroids and
However, the BPA concentrations in Ganga are only slightly higher than the recent study reported from Cooum (0.4 g/L) and Adyar (0.4 g/L) rivers in Chennai city, south India (Yamazaki et al., 2015), and comparable with studies from other Asian countries (Basheer et al., 2005; Ding and Wu, 2000; Dong et al., 2009; Huang et al., 2012).
- Are plasticizers safe in Adyar & Cooum rivers?
- Hence, we have monitored the occurrence and risk associated with plasticizers [six phthalic acid esters (PAEs), bis (2-ethyl hexyl adipate) (DEHA)] and bisphenol A (BPA) in surface riverine sediments of Adyar and Cooum rivers from residential/commercial, industrial and electronic waste recycling sites.
- How many plasticizers and BPA are in Chennai River?
- This study reports the distribution of ∑ 7 plasticizers (6 PAEs and DEHA) and BPA along two major rivers flowing through Chennai city. Elevated levels of BPA and plasticizers were mainly attributed to the high load of industrial and domestic wastewater activities in addition to the burning of plastic waste along both the rivers.
- Do plasticizers and BPA contaminate sediments in Chennai city?
- The concentrations of plasticizers and BPA in sediments justify the need to restrict the discharge of wastewater into the two rivers. However, further studies to assess the sediments quality in Chennai city are necessary.
- Are microplastics a source of Paes in the Adyar and Cooum rivers?
- Higher concentrations of microplastics were reported in beach sediments along the downstream of the Adyar and Cooum rivers due to domestic discharge, surface runoff and municipal dumping (Sathish et al. 2019). Leaching of DEP and DBP from microplastics can be a possible source of PAEs in this region (Ramirez et al. 2019).
- Why are BPA and plasticizers in riverine sediments high?
- High average concentrations of BPA and plasticizers in riverine sediments from both the rivers might have resulted from the low water flows thereby reducing the dilution factor. The concentrations of plasticizers and BPA in sediments justify the need to restrict the discharge of wastewater into the two rivers.
- Why are Adyar & Cooum contaminated?
- Adyar and Cooum, the two rivers intersecting Chennai city, are exposed to serious pollution due to the release of large quantities of dumped waste, untreated wastewater and sewage. Sediments can act as repository for emerging organic contaminants.
