Facebook X-twitter Youtube Linkedin
  • 909-548-4900
Ampac USA logo
  • Home
  • Products
  • Industries
  • Solutions
  • Contact Us
Menu
  • Home
  • Products
  • Industries
  • Solutions
  • Contact Us
Home Water Filter

Occurrence of nitrosamines and their precursors in North American drinking waters.

Sammy Farag by Sammy Farag
March 17, 2022
Share on FacebookShare on Twitter

Last updated on April 14th, 2025 at 12:03 pm

Krasner, S. W.; Roback, S.; (…); Bukhari, Z.

2020 | AWWA Water Science

Eight N-nitrosamines were measured at 37 water plants in the United States and Canada. Five tobacco-specific nitrosamines (TSNAs) were measured in selected waters. N-Nitrosodimethylamine (NDMA) was preferentially formed in chloraminated systems (maximum detention time: median 4.4ng/L). A small amount was detected in some chlorinated systems (90th percentile <2.0 ng/L). After ozone (before chloramines), NDMA was sometimes detected (90th percentile 2.9 ng/L), suggesting that the ozone did not react with precursors to form NDMA. The chloramine plants that temporarily switched to chlorine typically produced less NDMA (Plant 29 reduced NDMA formation, on average, from 34 to 4 ng). More NDMA was produced during spring runoff, when there were elevated levels of ammonia and NDMA precursors in the source water. More NDMA was formed when there were higher levels of poly (diallyldimethylammonium chloride) (polyDADMAC) used. N-Nitrosomorpholene was found to be a contaminant and not a disinfection byproduct; it did not increase during chloramination. TSNAs were produced during spring runoff; source water ammonia impacted the chlor (am) ine chemistry. © 2020 American Water Works Association

The post Occurrence of nitrosamines and their precursors in North American drinking waters. appeared first on Facts About Water.

Source: Water Feed

Tags: RO
Sammy Farag

Sammy Farag

Next Post
11 Simple Ways to Protect and Conserve Groundwater

11 Simple Ways to Protect and Conserve Groundwater

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Recommended.

Reverse Osmosis Water Filters

Top 10 Contaminants Removed by Reverse Osmosis Water Filters

May 7, 2025
Industrial Reverse Osmosis System

Why Every Home Should Consider a Whole House Reverse Osmosis System

September 13, 2023

Subscribe.

Trending.

Reverse Osmosis Pool cleaners as a substitute for chlorine

Reverse Osmosis Pool cleaners as a substitute for chlorine

September 19, 2017
Reverse Osmosis system Troubleshooting: Fix 7 Common Problems

Reverse Osmosis system Troubleshooting: Fix 7 Common Problems

December 30, 2024
Deionized Water Vs. Distilled Water- Everything You Need to Know

Deionized Water Vs. Distilled Water- Everything You Need to Know

January 23, 2023
Reverse Osmosis Water Helps Boost Hair Health

5 Ways Reverse Osmosis Water Helps Boost Hair Health

August 25, 2021
Commercial RO trubleshooting

Troubleshooting Common Issues in Commercial RO Systems

June 17, 2025

AMPAC USA 2262 S 1200 W Suite #103 Woods Cross, UT 84087

US Phone: (909) 548-4900

ABOUT US

Welcome to Ampac USA’s sophisticated water purification systems, which are designed to tackle the most challenging water purification, water supply, wastewater treatment, and seawater desalination challenges in the world’s harshest settings.

KNOW MORE ABOUT

  • Home
  • Products
  • Industries
  • Solutions
  • Contact Us
Menu
  • Home
  • Products
  • Industries
  • Solutions
  • Contact Us

INFORMATION LINKS

  • About Us
  • Privacy Policy
  • Disclaimer Policy
  • Terms & Conditions
  • Delivery Information
  • Sitemap
Menu
  • About Us
  • Privacy Policy
  • Disclaimer Policy
  • Terms & Conditions
  • Delivery Information
  • Sitemap

CUSTOMER SUPPORT

Get updates on special events and receive your first drink on us!

Facebook X-twitter Youtube Linkedin
No Result
View All Result
  • Home
  • Review
  • Apple
  • Applications
  • Computers
  • Gaming
  • Gear
    • Audio
    • Camera
    • Smartphone
  • Microsoft
  • Photography
  • Security

© 2025 JNews - Premium WordPress news & magazine theme by Jegtheme.