Global assessment of chemical quality of drinking water: The case of trihalomethanes.

ABSTRACT:

Background

Trihalomethanes (THM), a major class of disinfection by-products, are widespread and are associated with adverse health effects. We conducted a global evaluation of current THM regulations and concentrations in drinking water.

Methods

We included 120 countries (∼7000 million inhabitants in 2016), representing 94% of the world population. We searched for country regulations and THM routine monitoring data using a questionnaire addressed to referent contacts. Scientific and gray literature was reviewed where contacts were not identified or declined participation. We obtained or estimated annual average THM concentrations, weighted to the population served when possible.

Results

Drinking water regulations were ascertained for 116/120 (97%) countries, with 89/1

SUBMITTER: Villanueva CM 

PROVIDER: S-EPMC11372340 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature