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Table 1 Records for the environmental monitoring and restoration terms, filtered by publication period (2010 to 2019), listed according to the frequency of occurrence

From: The EMR-rural project: key techniques and devices development for rural environmental monitoring and remediation in China

Frequency of key wordsBurst of key words
Rank of frequencyKey wordsNo. of frequencyTime sequenceKey wordsBurst intensityStartEnd2010–2019
1Heavy metals3241Risk factor3.1520162019
2Drinking water3042Health risk16.0920162019
3Pollution2833PCBs2.8820162017
4Exposure2754Land use11.0020162017
5Soil2395Constructed wetland10.4120152016
6Nitrogen2146Adsorption7.5020152016
7Underground water2037River7.4620142015
8Air pollution1898Wastewater5.4020142015
9Particulate matter1889Form7.5820142015
10Water18010PAHs6.9720122014
11Health16511PM2.511.9820122013
12Discharge15412PCBs10.0520112012
13Arsenic15013OCPs3.5020112012
14Children15014Particulate matter9.4320102012
15Microelement14715Air9.3520102011
16PCBs14516Rural area4.5720102011
17Pesticides14317Population2.4220102011