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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Environmental Sciences 39 8310 7976 18 18 226 6788

Hafizan Juahir publications per year

The chart shows the history of publications by Hafizan Juahir between 2004 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Hafizan Juahir published across 22 years, from 2004 to 2025, averaging 14.4 papers a year. Output peaked at 83 publications in 2018. 25 of the 316 publications appeared in the last two years.

No. of publications
20 40 60 80
Bar chart. Horizontal axis: year, 2004 to 2025. Vertical axis: number of publications, 0 to 83. Peak 83 publications in 2018. 2004: 2 publications 2005: 0 publications 2006: 2 publications 2007: 1 publication 2008: 4 publications 2009: 7 publications 2010: 9 publications 2011: 9 publications 2012: 15 publications 2013: 12 publications 2014: 27 publications 2015: 34 publications 2016: 11 publications 2017: 20 publications 2018: 83 publications 2019: 18 publications 2020: 5 publications 2021: 9 publications 2022: 11 publications 2023: 12 publications 2024: 16 publications 2025: 9 publications
2004 2025

316 publications in total across all disciplines

View publications per year as a table
Hafizan Juahir: publications per year, 2004 to 2025
Year Publications
2004 2
2005 0
2006 2
2007 1
2008 4
2009 7
2010 9
2011 9
2012 15
2013 12
2014 27
2015 34
2016 11
2017 20
2018 83
2019 18
2020 5
2021 9
2022 11
2023 12
2024 16
2025 9
Total 316
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Hafizan Juahir publication distribution in Environmental Sciences in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Environmental Sciences in 2026. The highlighted bar marks where Hafizan Juahir sits on this spectrum.

No. of scientists
200 400 600
Bar chart with 66 bars. Horizontal axis: publications, 41–50 to 690+. Vertical axis: number of scientists, 0 to 617. Most scientists, 617, have 121–130 publications. The last bar groups every scientist with 690 publications or more. The highlighted bar, 221–230 publications, is where this scientist sits. 41–50 publications: 21 scientists 51–60 publications: 62 scientists 61–70 publications: 133 scientists 71–80 publications: 257 scientists 81–90 publications: 361 scientists 91–100 publications: 440 scientists 101–110 publications: 492 scientists 111–120 publications: 541 scientists 121–130 publications: 617 scientists 131–140 publications: 544 scientists 141–150 publications: 541 scientists 151–160 publications: 539 scientists 161–170 publications: 444 scientists 171–180 publications: 444 scientists 181–190 publications: 400 scientists 191–200 publications: 377 scientists 201–210 publications: 318 scientists 211–220 publications: 282 scientists 221–230 publications: 263 scientists 231–240 publications: 220 scientists 241–250 publications: 217 scientists 251–260 publications: 180 scientists 261–270 publications: 181 scientists 271–280 publications: 155 scientists 281–290 publications: 130 scientists 291–300 publications: 127 scientists 301–310 publications: 130 scientists 311–320 publications: 85 scientists 321–330 publications: 106 scientists 331–340 publications: 80 scientists 341–350 publications: 83 scientists 351–360 publications: 75 scientists 361–370 publications: 69 scientists 371–380 publications: 52 scientists 381–390 publications: 54 scientists 391–400 publications: 56 scientists 401–410 publications: 44 scientists 411–420 publications: 40 scientists 421–430 publications: 36 scientists 431–440 publications: 25 scientists 441–450 publications: 25 scientists 451–460 publications: 32 scientists 461–470 publications: 29 scientists 471–480 publications: 21 scientists 481–490 publications: 26 scientists 491–500 publications: 26 scientists 501–510 publications: 17 scientists 511–520 publications: 19 scientists 521–530 publications: 15 scientists 531–540 publications: 22 scientists 541–550 publications: 12 scientists 551–560 publications: 15 scientists 561–570 publications: 11 scientists 571–580 publications: 19 scientists 581–590 publications: 9 scientists 591–600 publications: 9 scientists 601–610 publications: 7 scientists 611–620 publications: 11 scientists 621–630 publications: 5 scientists 631–640 publications: 5 scientists 641–650 publications: 6 scientists 651–660 publications: 3 scientists 661–670 publications: 3 scientists 671–680 publications: 4 scientists 681–689 publications: 4 scientists 690+ publications: 100 scientists
41–50 publications 690+

This scientist: 226 publications — 72nd percentile

72% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 690 publications or more.

View publications distribution as a table
Number of Environmental Sciences scientists by publication count, Research.com 2026 ranking edition. Based on 9,676 ranked scientists.
Publications Scientists This scientist
41–50 21
51–60 62
61–70 133
71–80 257
81–90 361
91–100 440
101–110 492
111–120 541
121–130 617
131–140 544
141–150 541
151–160 539
161–170 444
171–180 444
181–190 400
191–200 377
201–210 318
211–220 282
221–230 263 226
231–240 220
241–250 217
251–260 180
261–270 181
271–280 155
281–290 130
291–300 127
301–310 130
311–320 85
321–330 106
331–340 80
341–350 83
351–360 75
361–370 69
371–380 52
381–390 54
391–400 56
401–410 44
411–420 40
421–430 36
431–440 25
441–450 25
451–460 32
461–470 29
471–480 21
481–490 26
491–500 26
501–510 17
511–520 19
521–530 15
531–540 22
541–550 12
551–560 15
561–570 11
571–580 19
581–590 9
591–600 9
601–610 7
611–620 11
621–630 5
631–640 5
641–650 6
651–660 3
661–670 3
671–680 4
681–689 4
690+ 100
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Hafizan Juahir D-index placement in Environmental Sciences in 2026

The chart shows the D-index (discipline H-index) distribution of Environmental Sciences scientists ranked by Research.com in 2026. The highlighted bar marks where Hafizan Juahir sits on this spectrum.

No. of scientists
100 200 300
Bar chart with 97 bars. Horizontal axis: D-Index, 30 to 126+. Vertical axis: number of scientists, 0 to 348. Most scientists, 348, have 45 D-Index. The last bar groups every scientist with 126 D-Index or more. The highlighted bar, 39 D-Index, is where this scientist sits. 30 D-Index: 12 scientists 31 D-Index: 26 scientists 32 D-Index: 51 scientists 33 D-Index: 88 scientists 34 D-Index: 123 scientists 35 D-Index: 163 scientists 36 D-Index: 206 scientists 37 D-Index: 267 scientists 38 D-Index: 265 scientists 39 D-Index: 275 scientists 40 D-Index: 321 scientists 41 D-Index: 343 scientists 42 D-Index: 305 scientists 43 D-Index: 336 scientists 44 D-Index: 330 scientists 45 D-Index: 348 scientists 46 D-Index: 291 scientists 47 D-Index: 275 scientists 48 D-Index: 272 scientists 49 D-Index: 273 scientists 50 D-Index: 263 scientists 51 D-Index: 232 scientists 52 D-Index: 266 scientists 53 D-Index: 217 scientists 54 D-Index: 198 scientists 55 D-Index: 177 scientists 56 D-Index: 202 scientists 57 D-Index: 204 scientists 58 D-Index: 166 scientists 59 D-Index: 177 scientists 60 D-Index: 166 scientists 61 D-Index: 152 scientists 62 D-Index: 143 scientists 63 D-Index: 150 scientists 64 D-Index: 124 scientists 65 D-Index: 119 scientists 66 D-Index: 120 scientists 67 D-Index: 118 scientists 68 D-Index: 82 scientists 69 D-Index: 98 scientists 70 D-Index: 94 scientists 71 D-Index: 105 scientists 72 D-Index: 74 scientists 73 D-Index: 84 scientists 74 D-Index: 70 scientists 75 D-Index: 67 scientists 76 D-Index: 78 scientists 77 D-Index: 60 scientists 78 D-Index: 59 scientists 79 D-Index: 52 scientists 80 D-Index: 47 scientists 81 D-Index: 38 scientists 82 D-Index: 48 scientists 83 D-Index: 42 scientists 84 D-Index: 42 scientists 85 D-Index: 43 scientists 86 D-Index: 29 scientists 87 D-Index: 37 scientists 88 D-Index: 29 scientists 89 D-Index: 30 scientists 90 D-Index: 34 scientists 91 D-Index: 20 scientists 92 D-Index: 22 scientists 93 D-Index: 17 scientists 94 D-Index: 19 scientists 95 D-Index: 24 scientists 96 D-Index: 21 scientists 97 D-Index: 20 scientists 98 D-Index: 24 scientists 99 D-Index: 17 scientists 100 D-Index: 17 scientists 101 D-Index: 21 scientists 102 D-Index: 25 scientists 103 D-Index: 18 scientists 104 D-Index: 26 scientists 105 D-Index: 20 scientists 106 D-Index: 15 scientists 107 D-Index: 10 scientists 108 D-Index: 13 scientists 109 D-Index: 15 scientists 110 D-Index: 12 scientists 111 D-Index: 8 scientists 112 D-Index: 7 scientists 113 D-Index: 9 scientists 114 D-Index: 6 scientists 115 D-Index: 12 scientists 116 D-Index: 7 scientists 117 D-Index: 8 scientists 118 D-Index: 3 scientists 119 D-Index: 5 scientists 120 D-Index: 7 scientists 121 D-Index: 2 scientists 122 D-Index: 4 scientists 123 D-Index: 8 scientists 124 D-Index: 7 scientists 125 D-Index: 9 scientists 126+ D-Index: 92 scientists
30 D-Index 126+

This scientist: 39 D-Index — 15th percentile

15% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 126 D-Index or more.

View D-Index distribution as a table
Number of Environmental Sciences scientists by D-index, Research.com 2026 ranking edition. Based on 9,676 ranked scientists.
D-Index Scientists This scientist
30 12
31 26
32 51
33 88
34 123
35 163
36 206
37 267
38 265
39 275 39
40 321
41 343
42 305
43 336
44 330
45 348
46 291
47 275
48 272
49 273
50 263
51 232
52 266
53 217
54 198
55 177
56 202
57 204
58 166
59 177
60 166
61 152
62 143
63 150
64 124
65 119
66 120
67 118
68 82
69 98
70 94
71 105
72 74
73 84
74 70
75 67
76 78
77 60
78 59
79 52
80 47
81 38
82 48
83 42
84 42
85 43
86 29
87 37
88 29
89 30
90 34
91 20
92 22
93 17
94 19
95 24
96 21
97 20
98 24
99 17
100 17
101 21
102 25
103 18
104 26
105 20
106 15
107 10
108 13
109 15
110 12
111 8
112 7
113 9
114 6
115 12
116 7
117 8
118 3
119 5
120 7
121 2
122 4
123 8
124 7
125 9
126+ 92
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Overview

Hafizan Juahir is affiliated with Sultan Zainal Abidin University in Malaysia and specializes in environmental science with a strong focus on water-related research. Their work spans multiple aspects of environmental science, with particular attention to water quality monitoring, pollution assessment, and watershed analysis.

The scientist has contributed extensively to various subfields including:

  • Water Science and Technology
  • Environmental Engineering
  • Ecology
  • Plant Science
  • Pollution

Their research topics cover a broad spectrum of environmental and water quality challenges. The main topics of their work include:

  • Water Quality and Pollution Assessment
  • Groundwater and Watershed Analysis
  • Water Quality Monitoring and Analysis
  • Agricultural and Environmental Management
  • Sports and Physical Education Research
  • Hydrological Forecasting Using AI
  • Membrane Separation Technologies

Hafizan Juahir has authored multiple papers published in various academic journals. Notable recent publications include:

  • Occurrence of pesticides in surface water, pesticides removal efficiency in drinking water treatment plant and potential health risk to consumers in Tengi River Basin, Malaysia (2020), The Science of The Total Environment
  • Water quality modelling using principal component analysis and artificial neural network (2022), Marine Pollution Bulletin
  • Water corrosivity of polluted reservoir and hydropower sustainability (2020), Scientific Reports
  • Application of Compound Poisson Process in Pricing Catastrophe Bonds: A Systematic Literature Review (2022), Mathematics
  • A Review on the Roles of Extracellular Polymeric Substances (EPSs) in Wastewater Treatment: Source, Mechanism Study, Bioproducts, Limitations, and Future Challenges (2024), Water

Frequent collaborators in their research include:

  • Azimah Ismail
  • Hajjar Hartini Wan Jusoh
  • Nur Hanis Mohamad Hanapi
  • Setyo Budi Kurniawan
  • Siti Mariam Muhammad Nor

The scientist often publishes in journals such as:

  • Water
  • Environmental Science and Pollution Research
  • Desalination and Water Treatment
  • SSRN Electronic Journal
  • Mathematics

Best Publications

  • A review of biomass-derived heterogeneous catalyst for a sustainable biodiesel production

    Sharifah Hanis Yasmin Sayid Abdullah;Nur Hanis Mohamad Hanapi;Azman Azid;Roslan Umar

  • Artificial neural network modeling of the water quality index for Kinta River (Malaysia) using water quality variables as predictors.

    Nabeel M. Gazzaz;Mohd Kamil Yusoff;Ahmad Zaharin Aris;Hafizan Juahir

  • Spatial water quality assessment of Langat River Basin (Malaysia) using environmetric techniques.

    Hafizan Juahir;Sharifuddin M. Zain;Mohd Kamil Yusoff;T. I. Tengku Hanidza

  • Spatial Assessment of Air Quality Patterns in Malaysia Using Multivariate Analysis

    Doreena Dominick;Hafizan Juahir;Mohd Talib Latif;Sharifuddin M. Zain

  • Prediction of the Level of Air Pollution Using Principal Component Analysis and Artificial Neural Network Techniques: a Case Study in Malaysia

    Azman Azid;Hafizan Juahir;Mohd Ekhwan Toriman;Mohd Khairul Amri Kamarudin

  • Occurrence of pesticides in surface water, pesticides removal efficiency in drinking water treatment plant and potential health risk to consumers in Tengi River Basin, Malaysia.

    Nurulizani Elfikrie;Yu Bin Ho;Siti Zulfa Zaidon;Hafizan Juahir

  • Identification of the Hydrogeochemical Processes in Groundwater Using Classic Integrated Geochemical Methods and Geostatistical Techniques, in Amol-Babol Plain, Iran

    Tahoora Sheikhy Narany;Mohammad Firuz Ramli;Ahmad Zaharin Aris;Wan Nor Azmin Sulaiman

  • Lineament mapping and its application in landslide hazard assessment: a review

    Mohammad Firuz Ramli;N. Yusof;Mohd Kamil Yusoff;Hafizan Juahir

  • River water quality assessment using environmentric techniques: case study of Jakara River Basin

    Adamu Mustapha;Ahmad Zaharin Aris;Hafizan Juahir;Mohammad Firuz Ramli

  • Assessment of Groundwater Quality Using Multivariate Statistical Techniques in Terengganu

    Usman Nasiru Usman;Mohd Ekhwan Toriman;Hafizan Juahir;Musa Garba Abdullahi

  • Classification of River Water Quality Using Multivariate Analysis

    Shah Christirani Azhar;Ahmad Zaharin Aris;Mohd Kamil Yusoff;Mohammad Firuz Ramli

  • Characterization of spatial patterns in river water quality using chemometric pattern recognition techniques.

    Nabeel M. Gazzaz;Mohd Kamil Yusoff;Mohammad Firuz Ramli;Ahmad Zaharin Aris

  • Composition of selected heavy metals in road dust from Kuala Lumpur city centre

    Nur Mun im Mohd Han;Mohd Talib Latif;Murnira Othman;Doreena Dominick

  • Spatial assessment and source identification of heavy metals pollution in surface water using several chemometric techniques.

    Azimah Ismail;Mohd Ekhwan Toriman;Hafizan Juahir;Sharifuddin Md Zain

  • Chemometric techniques in distribution, characterisation and source apportionment of polycyclic aromatic hydrocarbons (PAHS) in aquaculture sediments in Malaysia.

    Ananthy Retnam;Mohamad Pauzi Zakaria;Hafizan Juahir;Ahmad Zaharin Aris

  • Optimization of biodiesel production by solid acid catalyst derived from coconut shell via response surface methodology

    Azizah Endut;Sharifah Hanis Yasmin Sayid Abdullah;Nur Hanis Mohamad Hanapi;Siti Hajar Abdul Hamid

  • Water quality modelling using artificial neural network and multivariate statistical techniques

    Hamza Ahmad Isiyaka;Adamu Mustapha;Hafizan Juahir;Philip Phil-Eze

  • Spatial and temporal air quality pattern recognition using environmetric techniques: a case study in Malaysia.

    Sharifah Norsukhairin Syed Abdul Mutalib;Hafizan Juahir;Azman Azid;Sharifah Mohd Sharif

  • Feed-Forward Artificial Neural Network Model for Air Pollutant Index Prediction in the Southern Region of Peninsular Malaysia

    Azman Azid;Hafizan Juahir;Mohd Talib Latif;Sharifuddin Mohd Zain

  • Spatial assessment of Langat river water quality using chemometrics

    Hafizan Juahir;Sharifuddin Md Zain;Ahmad Zaharin Aris;Mohd Kamil Yusoff

Frequent Co-Authors

Ahmad Zaharin Aris
Ahmad Zaharin Aris Universiti Putra Malaysia
Mohd Talib Latif
Mohd Talib Latif National University of Malaysia
Kerrie Mengersen
Kerrie Mengersen Queensland University of Technology
Mohamad Pauzi Zakaria
Mohamad Pauzi Zakaria University of Malaya
Sarva Mangala Praveena
Sarva Mangala Praveena Universiti Putra Malaysia
Helmi Zulhaidi Mohd Shafri
Helmi Zulhaidi Mohd Shafri Universiti Putra Malaysia
Zulkifli Yusop
Zulkifli Yusop University of Technology Malaysia
Mohd Raihan Taha
Mohd Raihan Taha National University of Malaysia
Nowshad Amin
Nowshad Amin Universiti Tenaga Nasional
Liew Juneng
Liew Juneng National University of Malaysia

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