Evidence map›Paper›PMID 30149596›Full record

SynthesisInternational journal of environmental research and public health2018

The Concentration of BTEX in the Air of Tehran: A Systematic Review-Meta Analysis and Risk Assessment.

Mehrnoosh Abtahi, Yadolah Fakhri, Gea Oliveri Conti, Margherita Ferrante, Mahmoud Taghavi, Javad Tavakoli, Ali Heshmati, Hassan Keramati, Bigard Moradi, Nazak Amanidaz and 1 more

Abstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in International journal of environmental research and public health, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing 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

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

  1. Prevalence of Cryptosporidium spp. in water: a global systematic review and meta-analysis.Environmental science and pollution research international · 2021
    Pooled it
  2. Green-synthesized Fe-doped TiORSC advances · 2026
    Article
  3. Article
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  8. Nitrate in groundwater and agricultural products: intake and risk assessment in northeastern Iran.Environmental science and pollution research international · 2022
    Article
  9. Article
  10. Article
  11. The Seasonality Impact of the BTEX Pollution on the Atmosphere of Arad City, Romania.International journal of environmental research and public health · 2021
    Article
  12. Article
  13. Acrylamide content of collected food products from Tehran's market: a risk assessment study.Environmental science and pollution research international · 2020
    Article
  14. Article
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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

11 authors.

Mehrnoosh AbtahiDepartment of Environmental Health Engineering, School of Public Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran. Mehrabtahi@sbmu.ac.ir.
Yadolah FakhriDepartment of Environmental Health Engineering, School of Public Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran. ya.fakhri@gmail.com.
Gea Oliveri ContiDepartment of Medical, Surgical Sciences and Advanced Technologies "G.F. Ingrassia", University of Catania, 95131 Catania, Italy. olivericonti@unict.it.
Margherita FerranteDepartment of Medical, Surgical Sciences and Advanced Technologies "G.F. Ingrassia", University of Catania, 95131 Catania, Italy. marfer@unict.it.ORCID 0000-0001-7596-2464
Mahmoud TaghaviDepartment of Environmental Health Engineering, School of Public Health, Social Development & Health Promotion Research Center, Gonabad University of Medical Sciences, Gonabad, Iran. taghavi66@yahoo.com.
Javad TavakoliDepartment of Food Science and Technology, Faculty of Agriculture, Jahrom University, Jahrom, Iran. ja_tavakoli@yahoo.com.
Ali HeshmatiNutrition Health Research Center, Hamadan University of Medical Sciences, Hamadan, Iran. ali_heshmaati@yahoo.com.
Hassan KeramatiDepartment of Environmental Health Engineering, School of Public Health, Semnan University of Medical Sciences, Semnan, Iran. Hkramatee@gmail.com.
Bigard MoradiResearch Center for Environmental Determinants of Health (RCEDH), Kermanshah University of Medical Sciences, Kermanshah, Iran. b.moradi@gmail.com.
Nazak AmanidazEnvironmental Health Research Center, Golestan University of Medical Sciences, Golestan, Iran. Amanidaz_n@yahoo.com.
Amin Mousavi KhaneghahDepartment of Food Science, Faculty of Food Engineering, State University of Campinas (UNICAMP), 13083-862 Campinas, São Paulo, Brazil. mousavi.amin@srbiau.ac.ir.ORCID 0000-0001-5769-0004

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In the current study, the concentration of some pollutants which are categorized as volatile organic compounds (VOCs), including benzene (B), toluene (T), ethylbenzene (E), and o-xylenes (o-X), in the air of Tehran was evaluated by the aid of a systematic review and meta-analysis approach. Also, the health risk for the exposed population was estimated using the recommended methods by the Environmental Protection Agency (EPA). The rank order based on their concentration in BTEX was benzene (149.18 µg/m³: 31%) > o-xylene (127.16 µg/m³: 27%) > ethylbenzene (110.15 µg/m³: 23%) > toluene (87.97 µg/m³: 19%). The ratio B/T in this study was calculated as 1.69, repressing that both stationary and mobile sources of emission can be considered as the main sources for benzene and toluene. Moreover, strong photochemical activity in Tehran was demonstrated by the high ratio of E/o-X. Meta-regression indicates that the concentration of BTEX has insignificantly (

Indexed as

Air PollutantsBenzeneBenzene DerivativesHumansIranRisk AssessmentTolueneXylenesAir PollutantsBenzeneBenzene DerivativesethylbenzeneTolueneXylenes

Identifiers

PMID30149596
PMCPMC6163851

What OpenQuestion holds

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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.