Mark Obinna Onyema

University of Port Harcourt

Publishing since 2016, latest 2023

Analytical Chemistry
Pollution
Mechanics of Materials
Health, Toxicology and Mutagenesis
Renewable Energy, Sustainability and the Environment
Waste Management and Disposal

Publications: 172016–2023
Citations: 165to those papers
h-index: 6i10-index 4
Field-weighted impact: 0.561.00 is the world average
World top 10%: 6%1 of 17 scored papers
Open access: 94%16 papers free to read

By year

Papers, and the citations to them

Publications, left axisCitations to that year’s papers, right axis2026 still in progress

Citations received each year

Peerford

To all their work, old papers included. Google Scholar also counts citations from theses, books and web pages, so its line runs higher.

Career

On their papers

Every institution they have given on a paper.

Publications

17 in all

Tricyclic Terpane Fingerprint of Crude Oils from Niger Delta, Nigeria
2023Scholars International Journal of Chemistry and Material SciencesJournalOpen accessFirst author1 citation10.36348/sijcms.2023.v06i04.004
Terpane Characterization of Crude Oils from Niger Delta, Nigeria: A Geochemical Appraisal
2023

Download CV:PDFWord

What they work on

From the classification of each paper

Subfields

Analytical Chemistry953%
Pollution847%
Mechanics of Materials741%
Health, Toxicology and Mutagenesis529%
Renewable Energy, Sustainability and the Environment424%
Waste Management and Disposal318%
Water Science and Technology318%
Biomedical Engineering212%
Management, Monitoring, Policy and Law212%
Mechanical Engineering212%

Physical Sciences

Topics most written on

Petroleum Processing and Analysis8
Hydrocarbon exploration and reservoir analysis7
Global Energy and Sustainability Research4
Microbial bioremediation and biosurfactants4
Heavy metals in environment3
Toxic Organic Pollutants Impact3
Biodiesel Production and Applications2
Hydraulic Fracturing and Reservoir Analysis2
Municipal Solid Waste Management2
Water Quality and Pollution Assessment2
activated carbon and charcoal1
Adsorption and biosorption for pollutant removal1

Who they write with

Their most frequent co-authors, and the papers those co-authors share

Where their co-authors are

24% of their papers have a co-author abroad

papers co-written3333444Home

Most frequent partner countries

Canada4
Chile3

Papers with at least one author in that country.

Institutions written with most

Université du Québec à MontréalCA4 papers
Rivers State UniversityNG4 papers
University of AtacamaCL3 papers
Madonna UniversityNG3 papers
Ignatius Ajuru University of EducationNG3 papers
Alex Ekwueme Federal University, Ndufu-AlikeNG1 paper
Imo State UniversityNG1 paper
Nnamdi Azikiwe UniversityNG1 paper

Where they publish

Journal of applied science and environmental management3
Environmental Research Communications2
Scholars International Journal of Chemistry and Material Sciences2
DOAJ (DOAJ: Directory of Open Access Journals)1
Environmental Monitoring and Assessment1
Heliyon

Development goals addressed

From each paper’s title and abstract

14Life below water6
6Clean water and sanitation5
2Zero hunger1
11Sustainable cities and communities1
15Life on land1
16Peace, justice and strong institutions1

Most cited

Ecological and human health risk assessment of total petroleum hydrocarbons in surface water and sediment from Woji Creek in the Niger Delta Estuary of Rivers State, Nigeria
Heliyon614
202136 citationsOpen access · Gold
Spatial and temporal distribution and contamination assessment of heavy metal in Woji Creek
Environmental Research Communications6
201935 citationsOpen access · Gold

Petroleum Science and Engineering

Uncommon Distribution of C20 and C21 Tricyclic Terpanes in Niger Delta Crude Oils

2022Scholars International Journal of Chemistry and Material SciencesJournalOpen accessSenior author1 citation10.36348/sijcms.2022.v05i10.001

Distribution of polycyclic aromatic hydrocarbons in Woji Creek, in the Niger Delta

2019Environmental Research CommunicationsJournalOpen access33 citations10.1088/2515-7620/ab50f2

DISTRIBUTION OF POLYCYCLIC AROMATIC HYDROCARBONS (PAHS) IN SOME CHARCOAL ROASTED FOODS COMMONLY CONSUMED IN PORT HARCOURT, NIGERIA

2019DOAJ (DOAJ: Directory of Open Access Journals)JournalOpen accessSenior author0 citations

Distribution of Polycyclic Aromatic Hydrocarbons in Soils within Vicinity of an Electronic Waste Open Burning Workshop in Aba, South East Nigeria

2017International Journal of Sciences: Basic and Applied ResearchJournalOpen accessFirst author0 citations

Characterization of Petroleum Hydrocarbons in Post-Burn Crude Oil-Spilled Soils, Gokana, Rivers State, Nigeria

2016Journal of applied science and environmental managementJournalOpen accessFirst authorCorresponding3 citations10.4314/jasem.v19i4.20

International Journal of Sciences: Basic and Applied Research1

Journal of Applied Sciences1

How it can be read

94% free to read

Diamond 9 · 53%Free to read and to publish
Gold 5 · 29%In an open-access journal
Green 2 · 12%A copy in a repository
Closed 1 · 6%Behind a paywall

Who funds it

1 of 17 papers name a funder

Finnish Center for Artificial Intelligence1

201933 citationsOpen access · Gold