Preprint / Version 1

Rio de Janeiro water crisis: a metagenomic approach

##article.authors##

Priscila Gonçalves Moura Fundação Oswaldo Cruz https://orcid.org/0000-0003-2553-1214
Nelson Peixoto Kotowski Filho Fundação Oswaldo Cruz https://orcid.org/0000-0001-5397-7980
Elvira Carvajal Universidade do Estado do Rio de Janeiro https://orcid.org/0000-0001-7368-515X
Natasha Berendonk Handam Fundação Oswaldo Cruz https://orcid.org/0000-0001-9316-7966
Rodrigo Jardim Fundação Oswaldo Cruz https://orcid.org/0000-0002-0943-5356
Adriana Sotero Martins Fundação Oswaldo Cruz https://orcid.org/0000-0002-4312-7699

DOI:

https://doi.org/10.1590/SciELOPreprints.529

Keywords:

cyanobacteria, water quality, consumption safety, public health

Abstract

In Rio de Janeiro’s metropolitan area comprise, over 8 million inhabitants receive drinking water from Company responsible for water and sewage, capted by the Guandu river’s water treatment station. Such water started to present unusual odour, taste and color in January 2020, as stated by the population itself. Results obtained through raw water microbiome metagenomic analysis inferred cyanobacteria presence, with Planktothricoides gender and Planktothricoides sp. SR001 being the most abundant gender and organism. Such do pose a risk to public health, as they are able to produce cyanotoxins that affect human health.