Table 2.

Ibuprofen detection in various types of environmental samples.

S.No.	Samples	Location and concentration	Reference
1.	Wastewater	Canada (45 μg/L) Pakistan (703–1673 μg/L) South Africa (1.38 μg/L) Belgium (5.78 μg/L)	Guerra et al., (2014); Vergeynst et al., (2015); Ashfaq et al., (2017); Matongo et al., (2015)
2.	Sludge	South Africa (0.009 μg/kg) Pakistan (2053–6064 μg/kg).	Matongo et al., (2015); Ashfaq et al., (2017)
3.	WWTPs	Greece, Sweden, Switzerland, United Kingdom, Bosnia and Herzegovina, Croatia, Serbi, China and Korea (0.004 and 603 μg/L)	Luo et al., (2014)
4.	Soil and soil irrigation	Soil in Pakistan (321–610 μg/kg) Soils irrigation in eastern Spain (0.213 μg/L)	Ashfaq et al., (2017); Vazquez-Roig et al., (2012)
5.	Surface waters	Canada (0.98 μg/L) Greece (1.0–67 μg/L) Korea (<15–414 μg/L) Taiwan (5.0–280 μg/L) France (8.0 μg/L) China (1417 μg/L)	Almeida et al., (2013); Luo et al., (2014)
6.	Groundwater	Europe is 3 ng/L–395 ng/L	Luo et al. (2014)