Evidence map›Paper›PMID 33643658›Full record

ArticleJournal of environmental health science & engineering2021

The presence of SARS-CoV-2 in raw and treated wastewater in 3 cities of Iran: Tehran, Qom and Anzali during coronavirus disease 2019 (COVID-19) outbreak.

Simin Nasseri, Jila Yavarian, Abbas Norouzian Baghani, Talat Mokhtari Azad, Ahmad Nejati, Ramin Nabizadeh, Mahdi Hadi, Nazanin Zahra Shafiei Jandaghi, Behnam Vakili, Seyed Koushyar Azam Vaghefi and 4 more

Abstract read
In one paragraph

Article in Journal of environmental health science & engineering, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

25 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  5. Strategies for safe management of hospital wastewater during the COVID-19 pandemic.International journal of environmental science and technology : IJEST · 2023
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  9. Importance of wastewater-based epidemiology for detecting and monitoring SARS-CoV-2.Case studies in chemical and environmental engineering · 2022
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

14 authors.

Simin NasseriDepartment of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
Jila YavarianDepartment of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
Abbas Norouzian BaghaniDepartment of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
Talat Mokhtari AzadDepartment of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
Ahmad NejatiDepartment of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
Ramin NabizadehDepartment of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
Mahdi HadiCenter for Water Quality Research (CWQR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran.
Nazanin Zahra Shafiei JandaghiDepartment of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
Behnam VakiliOffice of Improvement on Wastewater Operation Procedures, National Water and Wastewater Engineering Company, Tehran, Iran.
Seyed Koushyar Azam VaghefiManager of Water Quality Control Bureau, National Water and Wastewater Eng. Co., Tehran, Iran.
Mahtab BaghbanReference Laboratory of Water and Wastewater, Tehran Province of Water and Wastewater Company, Tehran, Iran.
Somayeh YousefiDepartment of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
Shahrokh NazmaraDepartment of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
Mahmood AlimohammadiDepartment of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study aimed to identifying the presence of SARS-CoV-2 RNA in raw and treated wastewater during the COVID-19 outbreak in Tehran, Qom and Anzali cities (Iran). From three wastewater treatment plants (WWTPs), 28 treated and untreated wastewater composite samples were collected from April 4 to May 2, 2020. In this study, polyethylene glycol 6000 (PEG 6000) was used through one-step real-time quantitative reverse transcriptase-polymerase chain reaction (qRT-PCR) for identification of RNA viruses. SARS-CoV-2 RNA was elicited from wastewater composite samples in all inlet samples taken from the three above mentioned cities. The results of outlet samples were as follows: 1) Results from Qom and East Anzali outlets showed no trace of SARS-CoV-2 RNA despite the difference in treatment disinfection method used (chlorine vs. ultraviolet (UV) disinfection). 2. In Tehran, SARS-CoV-2 RNA was not detected in any of the outlet samples taken from the modules disinfected by UV. Out of the four samples taken from the modules disinfected by chlorine, two were positive for the SARS-CoV-2 RNA which could have been caused by deficiencies in operation and maintenance. It can be concluded that meeting the standards of operation and maintenance (O&M) in WWTPs can considerably ensure that wastewater does not act as one of the roots of transmission for the disease.

Indexed as

COVID-19DisinfectionPandemicSARS-CoV-2Wastewater treatment

Identifiers

PMID33643658
PMCPMC7903026

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.