Table 5.
Year | Samples (n) | Country | Positive samples (%) | Mean±SD (ng/L) | Detection method | References |
---|---|---|---|---|---|---|
2005-2006 | 23 | Syria | 13(57) | 67±18.4 | ELISA | Ghanem and Orfi, 2009 |
2007 | 24 | Pakistan | 4 (16.7) | 2.0±4.0° | HPLC | Hussain et al., 2010 |
2007-2008 | 51 | Iran | 19 (37.3) | 28.1±13.7 | ELISA | Rahimi et al., 2010 |
2007-2008 | 814 | Spain | 387 (47.5) | - | ELISA | Rubio et al., 2011 |
2008-2009 | 42 | Iran | 13 (31.0) | 25.8±15.1 | ELISA | Rahimi and Ameri, 2012 |
2009 | 118 | Italy | 1 (0.8) | 5.2 | ELISA | Cossu et al., 2011 |
2013 | 19 | Croatia | 0 (0.0) | 3.7±0.91° | ELISA | Bilandžić et al., 2014 |
SD, standard deviation; ELISA, enzyme-linked immunosorbent assay; HPLC, high-performance liquid chromatography.
°Concentration mean was determined on all the samples.