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Environmental Sciences
Brazil
2026

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Environmental Sciences 70 1704 1622 5 5 289 15776

Olaf Malm publications per year

The chart shows the history of publications by Olaf Malm between 1960 and 2026, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Olaf Malm published across 67 years, from 1960 to 2026, averaging 4.7 papers a year. Output peaked at 23 publications in 2007. 6 of the 316 publications appeared in the last two years.

No. of publications
5 10 15 20
Bar chart. Horizontal axis: year, 1960 to 2026. Vertical axis: number of publications, 0 to 23. Peak 23 publications in 2007. 1960: 1 publication 1961: 0 publications 1962: 0 publications 1963: 0 publications 1964: 0 publications 1965: 0 publications 1966: 0 publications 1967: 0 publications 1968: 0 publications 1969: 0 publications 1970: 0 publications 1971: 0 publications 1972: 0 publications 1973: 0 publications 1974: 0 publications 1975: 0 publications 1976: 0 publications 1977: 0 publications 1978: 0 publications 1979: 0 publications 1980: 0 publications 1981: 0 publications 1982: 0 publications 1983: 0 publications 1984: 0 publications 1985: 0 publications 1986: 1 publication 1987: 1 publication 1988: 3 publications 1989: 3 publications 1990: 2 publications 1991: 1 publication 1992: 1 publication 1993: 2 publications 1994: 0 publications 1995: 6 publications 1996: 0 publications 1997: 6 publications 1998: 8 publications 1999: 4 publications 2000: 1 publication 2001: 5 publications 2002: 6 publications 2003: 2 publications 2004: 2 publications 2005: 7 publications 2006: 5 publications 2007: 23 publications 2008: 23 publications 2009: 16 publications 2010: 8 publications 2011: 12 publications 2012: 19 publications 2013: 14 publications 2014: 16 publications 2015: 15 publications 2016: 8 publications 2017: 5 publications 2018: 19 publications 2019: 15 publications 2020: 16 publications 2021: 15 publications 2022: 7 publications 2023: 5 publications 2024: 7 publications 2025: 5 publications 2026: 1 publication
1960 2026

316 publications in total across all disciplines

View publications per year as a table
Olaf Malm: publications per year, 1960 to 2026
Year Publications
1960 1
1961 0
1962 0
1963 0
1964 0
1965 0
1966 0
1967 0
1968 0
1969 0
1970 0
1971 0
1972 0
1973 0
1974 0
1975 0
1976 0
1977 0
1978 0
1979 0
1980 0
1981 0
1982 0
1983 0
1984 0
1985 0
1986 1
1987 1
1988 3
1989 3
1990 2
1991 1
1992 1
1993 2
1994 0
1995 6
1996 0
1997 6
1998 8
1999 4
2000 1
2001 5
2002 6
2003 2
2004 2
2005 7
2006 5
2007 23
2008 23
2009 16
2010 8
2011 12
2012 19
2013 14
2014 16
2015 15
2016 8
2017 5
2018 19
2019 15
2020 16
2021 15
2022 7
2023 5
2024 7
2025 5
2026 1
Total 316
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Olaf Malm 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 Olaf Malm 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, 281–290 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: 289 publications — 84th percentile

84% 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
231–240 220
241–250 217
251–260 180
261–270 181
271–280 155
281–290 130 289
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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Olaf Malm 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 Olaf Malm 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, 70 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: 70 D-Index — 83rd percentile

83% 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
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 70
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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Research.com Recognitions

  • 2026 - Research.com Environmental Sciences in Brazil Leader Award
  • 2025 - Research.com Environmental Sciences in Brazil Leader Award
  • 2023 - Research.com Environmental Sciences in Brazil Leader Award
  • 2022 - Research.com Environmental Sciences in Brazil Leader Award

Overview

Olaf Malm is affiliated with the Federal University of Rio de Janeiro in Brazil and conducts research primarily within the field of Environmental Science. Their work focuses on several key subfields, including Health, Toxicology and Mutagenesis, Ecology, Pollution, Nature and Landscape Conservation, and Civil and Structural Engineering.

The scientist's research interests cover a range of topics related to environmental contamination and toxicity. Major areas include:

  • Mercury impact and mitigation studies
  • Heavy Metal Exposure and Toxicity
  • Marine animal studies overview
  • Heavy metals in environment
  • Environmental Toxicology and Ecotoxicology
  • Toxic Organic Pollutants Impact
  • Pharmaceutical and Antibiotic Environmental Impacts

Olaf Malm has published numerous papers in reputable journals. Selected recent publications include:

  • "A review on pesticides in flower production: A push to reduce human exposure and environmental contamination," 2021, Environmental Pollution
  • "First year after the Brumadinho tailings' dam collapse: Spatial and seasonal variation of trace elements in sediments, fishes and macrophytes from the Paraopeba River, Brazil," 2020, Environmental Research
  • "Fluoroquinolone-contaminated poultry litter strongly affects earthworms as verified through lethal and sub-lethal evaluations," 2020, Ecotoxicology and Environmental Safety
  • "Changes in mercury distribution and its body burden in delphinids affected by a morbillivirus infection: Evidences of methylmercury intoxication in Guiana dolphin," 2020, Chemosphere
  • "Bioaccumulation of mercury is equal between sexes but different by age in seabird (Sula leucogaster) population from southeast coast of Brazil," 2021, Environmental Pollution

Frequent publication venues for Malm's work include:

  • SSRN Electronic Journal
  • Environmental Research
  • Chemosphere
  • The Science of The Total Environment
  • Environmental Pollution

Collaboration is an important aspect of their research. Frequent co-authors include:

  • João Paulo Machado Torres
  • Adan Santos Lino
  • Daniele Kasper
  • Petrus Galvão
  • Cláudio Ernesto Taveira Parente

Best Publications

  • Gold mining as a source of mercury exposure in the Brazilian Amazon.

    Olaf Malm

  • Trophic magnification factors: Considerations of ecology, ecosystems, and study design

    Katrine Borgå;Karen A Kidd;Derek C G Muir;Olof Berglund

  • Methylmercury pollution in the Amazon, Brazil

    Hirokatsu Akagi;Olaf Malm;Yoshihide Kinjo;Masazumi Harada

  • Human exposure to mercury due to goldmining in the Tapajos River basin, Amazon, Brazil: Speciation of mercury in human hair, blood and urine

    H. Akagi;O. Malm;F. J. P. Branches;Y. Kinjo

  • Mercury pollution due to gold mining in the Madeira river basin, Brazil.

    O. Malm;W. C. Pfeiffer;C. M. M. Souza;R. Reuther

  • Recovery of Mercury-Contaminated Fisheries

    John Munthe;R. A (Drew) Bodaly;Brian A. Branfireun;Charles T. Driscoll

  • Mercury and methylmercury in fish and human hair from the Tapajós river basin, Brazil

    Olaf Malm;Fernando J.P. Branches;Hirokatsu Akagi;Miriam B. Castro

  • Low dose of fine particulate matter (PM2.5) can induce acute oxidative stress, inflammation and pulmonary impairment in healthy mice.

    D R Riva;C B Magalhães;A A Lopes;T Lanças

  • Large emissions from floodplain trees close the Amazon methane budget

    Sunitha Rao Pangala;Alex Enrich-Prast;Luana S. Basso;Roberta Bittencourt Peixoto

  • First Determination of UV Filters in Marine Mammals. Octocrylene Levels in Franciscana Dolphins

    Pablo Gago-Ferrero;Mariana B. Alonso;Mariana B. Alonso;Carolina P. Bertozzi;Juliana Marigo

  • Heavy metals and methylmercury in a tropical coastal estuary and a mangrove in Brazil

    H.A. Kehrig;F.N. Pinto;I. Moreira;O. Malm

  • DDT (dicloro difenil tricloroetano): toxicidade e contaminação ambiental - uma revisão

    Claudio D'Amato;João P. M. Torres;Olaf Malm

  • Mercury concentrations in inland waters of gold-mining areas in Rondônia, Brazil.

    Wolfgang C. Pfeiffer;Luiz Drude de Lacerda;Olaf Malm;Cristina Maria M. Souza

  • Establishment and analytical quality control of laboratories for Hg determination in biological and geological samples in the Amazon, Brazil

    Wanderley R Bastos;Olaf Malm;Wolfgang C Pfeiffer;David Cleary

  • Pyrethroids in human breast milk: occurrence and nursing daily intake estimation.

    Cayo Corcellas;Maria Luisa Feo;Joao Paulo Torres;Olaf Malm

  • Mercury pollution in Brazil

    Jerome O. Nriagu;Wolfgang C. Pfeiffer;Olaf Malm;Cristina M. Magalhaes de Souza

  • An assessment of Hg pollution in different goldmining areas, Amazon Brazil

    Olaf Malm;Miriam B. Castro;Wanderley R. Bastos;Fernando J.P. Branches

  • Environmental fate of mercury from gold mining in the Brazilian Amazon

    W. C. Pfeiffer;L. D. Lacerda;W. Salomons;O. Malm

  • Methylmercury in Fish and Hair Samples from the Balbina Reservoir, Brazilian Amazon

    Helena do Amaral Kehrig;Olaf Malm;Hirokatsu Akagi;Jean R.D. Guimarães

  • Trophic relationships and mercury biomagnification in Brazilian tropical coastal food webs

    Tatiana Lemos Bisi;Tatiana Lemos Bisi;Gilles Lepoint;Alexandre de Freitas Azevedo;Paulo Renato Dorneles;Paulo Renato Dorneles

Frequent Co-Authors

João Paulo Machado Torres
João Paulo Machado Torres Federal University of Rio de Janeiro
Wolfgang C. Pfeiffer
Wolfgang C. Pfeiffer Federal University of Rio de Janeiro
Damià Barceló
Damià Barceló University of Almería
Ethel Eljarrat
Ethel Eljarrat Spanish National Research Council
Jean Remy Davée Guimarães
Jean Remy Davée Guimarães Federal University of Rio de Janeiro
Krishna Das
Krishna Das University of Liège
Eduardo R. Secchi
Eduardo R. Secchi Federal University of Rio Grande
Monica F. Costa
Monica F. Costa Federal University of Pernambuco
Paulo Hilário Nascimento Saldiva
Paulo Hilário Nascimento Saldiva Universidade de São Paulo
Gilles Lepoint
Gilles Lepoint University of Liège

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