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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 63 2531 2415 259 255 140 11550

Peter K.K. Louie publications per year

The chart shows the history of publications by Peter K.K. Louie between 1989 and 2024, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Peter K.K. Louie published across 36 years, from 1989 to 2024, averaging 4.1 papers a year. Output peaked at 15 publications in 2013. 6 of the 147 publications appeared in the last two years.

No. of publications
5 10 15
Bar chart. Horizontal axis: year, 1989 to 2024. Vertical axis: number of publications, 0 to 15. Peak 15 publications in 2013. 1989: 1 publication 1990: 2 publications 1991: 2 publications 1992: 0 publications 1993: 5 publications 1994: 3 publications 1995: 1 publication 1996: 2 publications 1997: 0 publications 1998: 1 publication 1999: 0 publications 2000: 1 publication 2001: 2 publications 2002: 2 publications 2003: 2 publications 2004: 6 publications 2005: 7 publications 2006: 7 publications 2007: 2 publications 2008: 3 publications 2009: 5 publications 2010: 5 publications 2011: 5 publications 2012: 1 publication 2013: 15 publications 2014: 11 publications 2015: 10 publications 2016: 11 publications 2017: 4 publications 2018: 8 publications 2019: 5 publications 2020: 5 publications 2021: 3 publications 2022: 4 publications 2023: 3 publications 2024: 3 publications
1989 2024

147 publications in total across all disciplines

View publications per year as a table
Peter K.K. Louie: publications per year, 1989 to 2024
Year Publications
1989 1
1990 2
1991 2
1992 0
1993 5
1994 3
1995 1
1996 2
1997 0
1998 1
1999 0
2000 1
2001 2
2002 2
2003 2
2004 6
2005 7
2006 7
2007 2
2008 3
2009 5
2010 5
2011 5
2012 1
2013 15
2014 11
2015 10
2016 11
2017 4
2018 8
2019 5
2020 5
2021 3
2022 4
2023 3
2024 3
Total 147
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Peter K.K. Louie 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 Peter K.K. Louie 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, 131–140 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: 140 publications — 36th percentile

36% 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
131–140 544 140
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
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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Peter K.K. Louie 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 Peter K.K. Louie 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, 63 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: 63 D-Index — 75th percentile

75% 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 63
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

Peter K.K. Louie is affiliated with the Hong Kong Environmental Protection Department in China and has contributed extensively to the fields of Environmental Science and Earth and Planetary Sciences. Their work focuses primarily on atmospheric science, health toxicology and mutagenesis, and environmental engineering, with a notable emphasis on atmospheric chemistry and aerosols, air quality, and related health impacts.

The scientist's main research topics include:

  • Atmospheric chemistry and aerosols
  • Air Quality and Health Impacts
  • Vehicle emissions and performance
  • Air Quality Monitoring and Forecasting
  • COVID-19 impact on air quality
  • Atmospheric Ozone and Climate
  • Maritime Transport Emissions and Efficiency

Peter K.K. Louie has published across a variety of journals with frequent publications in Atmospheric Environment, The Science of The Total Environment, Journal of Environmental Sciences, Atmospheric Pollution Research, and Nature Communications.

Notable recent papers include:

  • Role of export industries on ozone pollution and its precursors in China, 2020, Nature Communications
  • Combined effects of increased O3 and reduced NO2 concentrations on short-term air pollution health risks in Hong Kong, 2020, Environmental Pollution
  • Protocol development for real-time ship fuel sulfur content determination using drone based plume sniffing microsensor system, 2020, The Science of The Total Environment
  • Air quality and synergistic health effects of ozone and nitrogen oxides in response to China's integrated air quality control policies during 2015-2019, 2020, Chemosphere
  • Spread of SARS-CoV-2 aerosols via two connected drainage stacks in a high-rise housing outbreak of COVID-19, 2022, Journal of Hazardous Materials

The scientist collaborates frequently with several colleagues, including Alexis K.H. Lau, Jimmy Chi Hung Fung, Jian Zhen Yu, Kenneth K. M. Leung, and Dasa Gu, reflecting a network of cooperation primarily in the environmental and atmospheric research communities.

Best Publications

  • Applications of low-cost sensing technologies for air quality monitoring and exposure assessment: How far have they gone?

    Lidia Morawska;Phong K. Thai;Xiaoting Liu;Akwasi Asumadu-Sakyi

  • Atmospheric levels and cytotoxicity of PAHs and heavy metals in TSP and PM2.5 at an electronic waste recycling site in southeast China

    Wenjing Deng;P. K. K. Louie;W. K. Liu;X. H. Bi

  • Source apportionment of ambient non-methane hydrocarbons in Hong Kong: application of a principal component analysis/absolute principal component scores (PCA/APCS) receptor model.

    Hai Guo;Tao Wang;P. K.K. Louie

  • Oxidative capacity and radical chemistry in the polluted atmosphere of Hong Kong and Pearl River Delta region: analysis of a severe photochemical smog episode

    Likun Xue;Rongrong Gu;Tao Wang;Xinfeng Wang

  • Seasonal characteristics and regional transport of PM2.5 in Hong Kong

    Peter K.K. Louie;John G. Watson;Judith C. Chow;Antony Chen

  • Which emission sources are responsible for the volatile organic compounds in the atmosphere of Pearl River Delta

    Hai Guo;H.R. Cheng;Z.H. Ling;P.K.K. Louie

  • Ground-level ozone in the Pearl River Delta region: Analysis of data from a recently established regional air quality monitoring network

    Junyu Zheng;Liuju Zhong;Tao Wang;Peter K.K. Louie

  • Characteristics and health impacts of VOCs and carbonyls associated with residential cooking activities in Hong Kong

    Yu Huang;Steven Sai Hang Ho;Steven Sai Hang Ho;Kin Fai Ho;Shun Cheng Lee

  • Impact Analysis of Temperature and Humidity Conditions on Electrochemical Sensor Response in Ambient Air Quality Monitoring.

    Peng Wei;Zhi Ning;Sheng Ye;Li Sun

  • Ambient Ozone Control in a Photochemically Active Region: Short-Term Despiking or Long-Term Attainment?

    Jiamin Ou;Zibing Yuan;Junyu Zheng;Zhijiong Huang

  • Characterization of PM2.5 Major Components and Source Investigation in Suburban Hong Kong: A One Year Monitoring Study

    X. H. Hilda Huang;Qijing Bian;Wai Man Ng;Peter K.K. Louie

  • Emissions of gas- and particle-phase polycyclic aromatic hydrocarbons (PAHs) in the Shing Mun Tunnel, Hong Kong

    Kinfai Ho;Steven Sai Hang Ho;Steven Sai Hang Ho;Sichen Lee;Yan Cheng

  • Chemically-speciated on-road PM2.5 motor vehicle emission factors in Hong Kong

    Y. Cheng;Shuncheng Lee;K. F. Ho;J. C. Chow

  • Vehicular emission of volatile organic compounds (VOCs) from a tunnel study in Hong Kong

    K. F. Ho;K. F. Ho;Shuncheng Lee;W. K. Ho;D. R. Blake

  • Identification and spatiotemporal variations of dominant PM10 sources over Hong Kong

    Zibing Yuan;Alexis Kai-Hon Lau;Hongyi Zhang;Jianzhen Yu

  • Seasonal variation of carbonyl compound concentrations in urban area of Hong Kong

    K.F. Ho;S.C. Lee;Peter K.K. Louie;S.C. Zou

  • Observations of nitryl chloride and modeling its source and effect on ozone in the planetary boundary layer of southern China

    Tao Wang;Yee Jun Tham;Likun Xue;Qinyi Li

  • PM2.5 chemical composition in Hong Kong: urban and regional variations.

    Peter K.K. Louie;Judith C. Chow;L.-W. Antony Chen;John G. Watson

  • Nitrous acid (HONO) in a polluted subtropical atmosphere: Seasonal variability, direct vehicle emissions and heterogeneous production at ground surface

    Zheng Xu;Zheng Xu;Tao Wang;Tao Wang;Jueqi Wu;Likun Xue

  • Increasing external effects negate local efforts to control ozone air pollution: a case study of Hong Kong and implications for other Chinese cities.

    Likun Xue;Tao Wang;Peter K. K. Louie;Connie W. Y. Luk

  • Ozone source apportionment (OSAT) to differentiate local regional and super‐regional source contributions in the Pearl River Delta region, China

    Ying Li;Alexis K H Lau;Jimmy C H Fung;Junyu Zheng

  • Abundance and seasonal characteristics of elemental and organic carbon in Hong Kong PM10

    Jian Zhen Yu;Joanne Wai Ting Tung;Alan Wai Man Wu;Alexis Kai Hon Lau

Frequent Co-Authors

Jian Zhen Yu
Jian Zhen Yu Hong Kong University of Science and Technology
Alexis K.H. Lau
Alexis K.H. Lau Hong Kong University of Science and Technology
Kin-Fai Ho
Kin-Fai Ho Chinese University of Hong Kong
Tao Wang
Tao Wang Hong Kong Polytechnic University
Steven Sai Hang Ho
Steven Sai Hang Ho Desert Research Institute
Donald R. Blake
Donald R. Blake University of California, Irvine
Shuncheng Lee
Shuncheng Lee Hong Kong University of Science and Technology (Guangzhou)
Hai Guo
Hai Guo Hong Kong Polytechnic University
Likun Xue
Likun Xue Shandong University
Junyu Zheng
Junyu Zheng Jinan University

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