Universidad de Costa Rica
  • Sobre Kérwá
  • Acceso Abierto
  • Cómo Depositar
  • Políticas
  • Contacto
    • español
    • English
  • English 
    • español
    • English
  • Login
View Item 
  •   Kérwá Home
  • Investigación
  • Ciencias básicas
  • Biología
  • View Item
  •   Kérwá Home
  • Investigación
  • Ciencias básicas
  • Biología
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Release of Nitrosamines and Nitrosamine Precursors from Scrap Tires | Environmental Science & Technology Letters

artículo científico
Thumbnail
Date
2021
Author
Beita Sandí, Wilson
Selbes, Meric
Ersan, Mahmut S.
Tanju Karanfil
Metadata
Show full item record
Abstract
Materials used during manufacturing of tires can be a source of nitrosamines and/or their precursors. Here, we examined the leaching of nitrosamines and nitrosamine precursors from scrap tires under different test conditions. Tire chips of different sizes and crumb rubber were exposed to leaching solutions with pH values ranging from 4.0 to 10.0. Leachates collected from tires were analyzed for nitrosamines. Leachates were oxidized with chloramine, ozone, or ozone followed by chloramine to quantify the amount of nitrosamine precursors. While N-nitrosodimethylamine (NDMA) and N-nitrosomorpholine (NMOR) constituted more than 90% of nitrosamines, N-nitrosodibutylamine and N-nitrosopyrrolidine were also detected in the leachates. Chloramination of the leachate was found to form additional NDMA, NMOR, and other nitrosamines. While ozonation alone did not lead to formation of NDMA or NMOR, lower levels of formation of NDMA and NMOR were observed when ozonation was followed by chloramination as compared to those for only chloramination. This suggests that ozonation reduced the reactivity of nitrosamine precursors leaching from scrap tires. Furthermore, the levels of leaching of NDMA and NMOR precursors were higher under lower-pH conditions, which can be attributed to the higher solubility of protonated amines. From an environmental standpoint, these results suggest that water in contact with tire scraps (such as in urban runoff, bed media for ballast water and wastewater treatment, and ground cover for playgrounds) may potentially contain nitrosamines and nitrosamine precursors, and the amount of precursor leaching may change with the size of the tire scraps.
URI
https://hdl.handle.net/10669/84644
External link to the item
10.1021/acs.estlett.9b00172
https://pubs.acs.org/doi/10.1021/acs.estlett.9b00172
Collections
  • Biología [1292]

  • Repositorios universitarios

  • Repositorio del SIBDI-UCR
  • Biblioteca Digital del CIICLA
  • Repositorio Documental Rafael Obregón Loría (CIHAC)
  • Biblioteca Digital Carlos Melendez (CIHAC)
  • Repositorio de Fotografías
  • Colección de videos de UPA-VAS
  • Sitios recomendados

  • Buscador regional de LA Referencia
  • Buscador del Open ROAR
  • Scientific Electronic Library Online (SciELO)
  • Directory of Open Access Journals (DOAJ)
  • Redalyc
  • Redes sociales

  • facebook.com/repositoriokerwa
  • @Ciencia_UCR
  • Sobre Kérwá
  • Acceso Abierto
  • Cómo depositar
  • Políticas
Contact Us | Send Feedback
Repositorio Institucional de la Universidad de Costa Rica. Algunos derechos reservados. Este repositorio funciona con DSpace.
 

 

Browse

All of KérwáCommunities & CollectionsTitlesAuthorsSubjectsProcedenceTypeThis CollectionTitlesAuthorsSubjectsProcedenceType

My Account

LoginRegister

  • Repositorios universitarios

  • Repositorio del SIBDI-UCR
  • Biblioteca Digital del CIICLA
  • Repositorio Documental Rafael Obregón Loría (CIHAC)
  • Biblioteca Digital Carlos Melendez (CIHAC)
  • Repositorio de Fotografías
  • Colección de videos de UPA-VAS
  • Sitios recomendados

  • Buscador regional de LA Referencia
  • Buscador del Open ROAR
  • Scientific Electronic Library Online (SciELO)
  • Directory of Open Access Journals (DOAJ)
  • Redalyc
  • Redes sociales

  • facebook.com/repositoriokerwa
  • @Ciencia_UCR
  • Sobre Kérwá
  • Acceso Abierto
  • Cómo depositar
  • Políticas
Contact Us | Send Feedback
Repositorio Institucional de la Universidad de Costa Rica. Algunos derechos reservados. Este repositorio funciona con DSpace.