Scimago Journal & Country Rank

Process Safety and Environmental Protection


United Kingdom

Universities and research institutions in United Kingdom

Subject Area and Category


Institution of Chemical Engineers



Publication type



09575820, 17443598





How to publish in this journal


PSEP aims to be the principal international journal for publication of high quality, original papers in the branches of engineering concerned with the safety of industrial processes and the protection of the environment. Papers that deal with new developments in safety or environmental aspects, demonstrating how research results can be used in process engineering design and practice, are particularly encouraged. Experimental or theoretical research work bringing new perspectives to established principles, highlighting unsolved problems or indicating directions for future research will also be considered. The journal is especially interested in contributions that extend the boundaries of traditional engineering as well as in multidisciplinary papers. Papers related to environmental protection must take an integrated pollution control approach, demonstrating clearly that any proposed treatment method does not simply transfer pollution from one environmental medium to another, for example, from air to water or from water to solid waste. All such papers must discuss how any treatment effluents, spent adsorbents, etc., can be treated or disposed of safely, avoiding transfer of pollution to another environmental medium. Join the conversation about this journal

The set of journals have been ranked according to their SJR and divided into four equal groups, four quartiles. Q1 (green) comprises the quarter of the journals with the highest values, Q2 (yellow) the second highest values, Q3 (orange) the third highest values and Q4 (red) the lowest values.

Chemical Engineering (miscellaneous)1999Q2
Chemical Engineering (miscellaneous)2000Q1
Chemical Engineering (miscellaneous)2001Q2
Chemical Engineering (miscellaneous)2002Q1
Chemical Engineering (miscellaneous)2003Q1
Chemical Engineering (miscellaneous)2004Q2
Chemical Engineering (miscellaneous)2005Q2
Chemical Engineering (miscellaneous)2006Q1
Chemical Engineering (miscellaneous)2007Q2
Chemical Engineering (miscellaneous)2008Q2
Chemical Engineering (miscellaneous)2009Q1
Chemical Engineering (miscellaneous)2010Q1
Chemical Engineering (miscellaneous)2011Q1
Chemical Engineering (miscellaneous)2012Q1
Chemical Engineering (miscellaneous)2013Q1
Chemical Engineering (miscellaneous)2014Q1
Chemical Engineering (miscellaneous)2015Q1
Chemical Engineering (miscellaneous)2016Q1
Chemical Engineering (miscellaneous)2017Q1
Chemical Engineering (miscellaneous)2018Q1
Chemical Engineering (miscellaneous)2019Q1
Chemical Engineering (miscellaneous)2020Q1
Environmental Chemistry1999Q4
Environmental Chemistry2000Q2
Environmental Chemistry2001Q3
Environmental Chemistry2002Q3
Environmental Chemistry2003Q3
Environmental Chemistry2004Q3
Environmental Chemistry2005Q3
Environmental Chemistry2006Q3
Environmental Chemistry2007Q3
Environmental Chemistry2008Q3
Environmental Chemistry2009Q2
Environmental Chemistry2010Q2
Environmental Chemistry2011Q3
Environmental Chemistry2012Q3
Environmental Chemistry2013Q2
Environmental Chemistry2014Q2
Environmental Chemistry2015Q3
Environmental Chemistry2016Q2
Environmental Chemistry2017Q2
Environmental Chemistry2018Q1
Environmental Chemistry2019Q2
Environmental Chemistry2020Q2
Environmental Engineering1999Q2
Environmental Engineering2000Q1
Environmental Engineering2001Q2
Environmental Engineering2002Q2
Environmental Engineering2003Q2
Environmental Engineering2004Q2
Environmental Engineering2005Q2
Environmental Engineering2006Q2
Environmental Engineering2007Q2
Environmental Engineering2008Q3
Environmental Engineering2009Q2
Environmental Engineering2010Q1
Environmental Engineering2011Q2
Environmental Engineering2012Q2
Environmental Engineering2013Q1
Environmental Engineering2014Q1
Environmental Engineering2015Q2
Environmental Engineering2016Q2
Environmental Engineering2017Q1
Environmental Engineering2018Q1
Environmental Engineering2019Q1
Environmental Engineering2020Q1
Safety, Risk, Reliability and Quality1999Q2
Safety, Risk, Reliability and Quality2000Q1
Safety, Risk, Reliability and Quality2001Q3
Safety, Risk, Reliability and Quality2002Q1
Safety, Risk, Reliability and Quality2003Q1
Safety, Risk, Reliability and Quality2004Q2
Safety, Risk, Reliability and Quality2005Q2
Safety, Risk, Reliability and Quality2006Q2
Safety, Risk, Reliability and Quality2007Q2
Safety, Risk, Reliability and Quality2008Q2
Safety, Risk, Reliability and Quality2009Q1
Safety, Risk, Reliability and Quality2010Q1
Safety, Risk, Reliability and Quality2011Q1
Safety, Risk, Reliability and Quality2012Q1
Safety, Risk, Reliability and Quality2013Q1
Safety, Risk, Reliability and Quality2014Q1
Safety, Risk, Reliability and Quality2015Q1
Safety, Risk, Reliability and Quality2016Q1
Safety, Risk, Reliability and Quality2017Q1
Safety, Risk, Reliability and Quality2018Q1
Safety, Risk, Reliability and Quality2019Q1
Safety, Risk, Reliability and Quality2020Q1

The SJR is a size-independent prestige indicator that ranks journals by their 'average prestige per article'. It is based on the idea that 'all citations are not created equal'. SJR is a measure of scientific influence of journals that accounts for both the number of citations received by a journal and the importance or prestige of the journals where such citations come from It measures the scientific influence of the average article in a journal, it expresses how central to the global scientific discussion an average article of the journal is.

Total Documents

Evolution of the number of published documents. All types of documents are considered, including citable and non citable documents.

Citations per document

This indicator counts the number of citations received by documents from a journal and divides them by the total number of documents published in that journal. The chart shows the evolution of the average number of times documents published in a journal in the past two, three and four years have been cited in the current year. The two years line is equivalent to journal impact factor ™ (Thomson Reuters) metric.

Cites per documentYearValue
Cites / Doc. (4 years)19990.519
Cites / Doc. (4 years)20000.671
Cites / Doc. (4 years)20010.553
Cites / Doc. (4 years)20020.644
Cites / Doc. (4 years)20030.649
Cites / Doc. (4 years)20040.724
Cites / Doc. (4 years)20050.607
Cites / Doc. (4 years)20060.595
Cites / Doc. (4 years)20070.753
Cites / Doc. (4 years)20080.698
Cites / Doc. (4 years)20091.294
Cites / Doc. (4 years)20101.870
Cites / Doc. (4 years)20112.000
Cites / Doc. (4 years)20122.370
Cites / Doc. (4 years)20132.382
Cites / Doc. (4 years)20143.212
Cites / Doc. (4 years)20152.971
Cites / Doc. (4 years)20163.521
Cites / Doc. (4 years)20173.748
Cites / Doc. (4 years)20184.556
Cites / Doc. (4 years)20195.394
Cites / Doc. (4 years)20206.292
Cites / Doc. (3 years)19990.519
Cites / Doc. (3 years)20000.640
Cites / Doc. (3 years)20010.466
Cites / Doc. (3 years)20020.603
Cites / Doc. (3 years)20030.711
Cites / Doc. (3 years)20040.556
Cites / Doc. (3 years)20050.539
Cites / Doc. (3 years)20060.669
Cites / Doc. (3 years)20070.753
Cites / Doc. (3 years)20080.679
Cites / Doc. (3 years)20091.302
Cites / Doc. (3 years)20101.876
Cites / Doc. (3 years)20111.834
Cites / Doc. (3 years)20122.000
Cites / Doc. (3 years)20132.536
Cites / Doc. (3 years)20143.333
Cites / Doc. (3 years)20152.787
Cites / Doc. (3 years)20163.428
Cites / Doc. (3 years)20173.782
Cites / Doc. (3 years)20184.634
Cites / Doc. (3 years)20195.437
Cites / Doc. (3 years)20206.384
Cites / Doc. (2 years)19990.573
Cites / Doc. (2 years)20000.600
Cites / Doc. (2 years)20010.286
Cites / Doc. (2 years)20020.600
Cites / Doc. (2 years)20030.609
Cites / Doc. (2 years)20040.441
Cites / Doc. (2 years)20050.578
Cites / Doc. (2 years)20060.568
Cites / Doc. (2 years)20070.754
Cites / Doc. (2 years)20080.654
Cites / Doc. (2 years)20091.294
Cites / Doc. (2 years)20101.970
Cites / Doc. (2 years)20111.431
Cites / Doc. (2 years)20121.981
Cites / Doc. (2 years)20132.400
Cites / Doc. (2 years)20143.079
Cites / Doc. (2 years)20152.411
Cites / Doc. (2 years)20163.424
Cites / Doc. (2 years)20173.833
Cites / Doc. (2 years)20184.668
Cites / Doc. (2 years)20195.524
Cites / Doc. (2 years)20206.414
Total Cites 

Evolution of the total number of citations and journal's self-citations received by a journal's published documents during the three previous years.
Journal Self-citation is defined as the number of citation from a journal citing article to articles published by the same journal.

Self Cites19998
Self Cites200017
Self Cites20016
Self Cites20029
Self Cites200316
Self Cites20048
Self Cites200510
Self Cites200611
Self Cites200726
Self Cites20086
Self Cites200926
Self Cites201019
Self Cites201116
Self Cites201224
Self Cites201316
Self Cites201443
Self Cites201561
Self Cites2016140
Self Cites2017181
Self Cites2018278
Self Cites2019360
Self Cites2020459
Total Cites199954
Total Cites200071
Total Cites200155
Total Cites200276
Total Cites200396
Total Cites200480
Total Cites200583
Total Cites2006117
Total Cites2007134
Total Cites2008133
Total Cites2009233
Total Cites2010319
Total Cites2011277
Total Cites2012318
Total Cites2013421
Total Cites2014570
Total Cites2015602
Total Cites20161162
Total Cites20171993
Total Cites20183397
Total Cites20194866
Total Cites20206888
External Cites per Doc 
Cites per Doc

Evolution of the number of total citation per document and external citation per document (i.e. journal self-citations removed) received by a journal's published documents during the three previous years. External citations are calculated by subtracting the number of self-citations from the total number of citations received by the journal’s documents.

External Cites per document19990.442
External Cites per document20000.486
External Cites per document20010.422
External Cites per document20020.573
External Cites per document20030.690
External Cites per document20040.621
External Cites per document20050.579
External Cites per document20060.693
External Cites per document20070.655
External Cites per document20080.679
External Cites per document20091.203
External Cites per document20101.840
External Cites per document20111.788
External Cites per document20121.922
External Cites per document20132.596
External Cites per document20143.253
External Cites per document20152.626
External Cites per document20163.088
External Cites per document20173.512
External Cites per document20184.320
External Cites per document20195.080
External Cites per document20206.003
Cites per document19990.519
Cites per document20000.640
Cites per document20010.466
Cites per document20020.603
Cites per document20030.711
Cites per document20040.556
Cites per document20050.539
Cites per document20060.669
Cites per document20070.753
Cites per document20080.679
Cites per document20091.302
Cites per document20101.876
Cites per document20111.834
Cites per document20122.000
Cites per document20132.536
Cites per document20143.333
Cites per document20152.787
Cites per document20163.428
Cites per document20173.782
Cites per document20184.634
Cites per document20195.437
Cites per document20206.384
% International Collaboration

International Collaboration accounts for the articles that have been produced by researchers from several countries. The chart shows the ratio of a journal's documents signed by researchers from more than one country; that is including more than one country address.

YearInternational Collaboration
Citable documents 
Non-citable documents

Not every article in a journal is considered primary research and therefore "citable", this chart shows the ratio of a journal's articles including substantial research (research articles, conference papers and reviews) in three year windows vs. those documents other than research articles, reviews and conference papers.

Non-citable documents19990
Non-citable documents20000
Non-citable documents20012
Non-citable documents20029
Non-citable documents200319
Non-citable documents200428
Non-citable documents200528
Non-citable documents200622
Non-citable documents200713
Non-citable documents20089
Non-citable documents20097
Non-citable documents20107
Non-citable documents20115
Non-citable documents20126
Non-citable documents201310
Non-citable documents20149
Non-citable documents201510
Non-citable documents20168
Non-citable documents201711
Non-citable documents201811
Non-citable documents20198
Non-citable documents20208
Citable documents1999104
Citable documents2000111
Citable documents2001116
Citable documents2002117
Citable documents2003116
Citable documents2004116
Citable documents2005126
Citable documents2006153
Citable documents2007165
Citable documents2008187
Citable documents2009172
Citable documents2010163
Citable documents2011146
Citable documents2012153
Citable documents2013156
Citable documents2014162
Citable documents2015206
Citable documents2016331
Citable documents2017516
Citable documents2018722
Citable documents2019887
Citable documents20201071
Cited documents 
Uncited documents

Ratio of a journal's items, grouped in three years windows, that have been cited at least once vs. those not cited during the following year.

Uncited documents199971
Uncited documents200065
Uncited documents200182
Uncited documents200282
Uncited documents200383
Uncited documents200492
Uncited documents2005105
Uncited documents2006113
Uncited documents2007106
Uncited documents2008124
Uncited documents200975
Uncited documents201044
Uncited documents201155
Uncited documents201257
Uncited documents201346
Uncited documents201434
Uncited documents201557
Uncited documents201661
Uncited documents201787
Uncited documents201867
Uncited documents201978
Uncited documents202096
Cited documents199933
Cited documents200046
Cited documents200136
Cited documents200244
Cited documents200352
Cited documents200452
Cited documents200549
Cited documents200662
Cited documents200772
Cited documents200872
Cited documents2009104
Cited documents2010126
Cited documents201196
Cited documents2012102
Cited documents2013120
Cited documents2014137
Cited documents2015159
Cited documents2016278
Cited documents2017440
Cited documents2018666
Cited documents2019817
Cited documents2020983
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Metrics based on Scopus® data as of April 2021
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