A　detailed　exhaust　emission　inventory　of　ships　by　using　Automatic　Identification　System　(AIS)　data　was　developed　for　Tianjin　Port,　one　of　the　top　10　world　container　ports　and　the　largest　port　in　North　China.　It　was　found　that　in　2014,　ship　emissions　are　2.93　x　10(4),　4.13　x　10(4),　4.03　x　10(3),　3.72　x　10(3),1.72　x　10(3)　and　3.57　x　10(3)　tonnes　of　SO2,　NOx,　PM10,　PM2.5,　NMVOC　and　CO　respectively,　which　are　equivalent　to　11.07%,　9.40%,　2.43%,　3.10%,　0.43%　and　0.16%　respectively　of　the　non-ship　anthropogenic　totals　in　Tianjin.　The　total　CO2　emissions　is　approximately　1.97　x　10(6)　tonnes.　The　container　ships　and　dry　bulk　cargo　ships　contributed　about　70%　of　the　total　ship　emissions　of　NOx,　SO2　and　PM10.　Pollutants　were　mainly　emitted　during　cruise　and　hotelling　modes,　and　the　highest　intensities　of　emissions　located　in　the　vicinity　of　fairways,　berth　and　anchorage　areas　in　Tianjin　Port.　Distinctive　difference　between　the　lowest　(February)　and　the　highest　(September)　monthly　emissions　is　due　to　the　adjustment　of　freight　volume　during　the　Chinese　New　Year　and　the　months　before　and　after　it.　(C)　2016　Elsevier　Ltd.　All　rights　reserved.