Table 6.
Year | Samples (n) | Country | Positive samples (%) | Mean±SD (ng/L) | Detection method | References |
---|---|---|---|---|---|---|
2003-2004 | 208 | Italy | 36 (17.3) | 14.5±8.4 | ELISA | Virdis et al., 2008 |
2005-2006 | 11 | Syria | 7(64) | 19±13.8 | ELISA | Ghanem and Orfi, 2009 |
2007 | 30 | Pakistan | 6 (20.0) | 2.0±5.0° | HPLC | Hussain et al., 2010 |
2007-2008 | 60 | Iran | 19 (31.7) | 30.1±18.3 | ELISA | Rahimi et al., 2010 |
2008-2009 | 48 | Iran | 17 (35.4) | 31.8±13.7 | ELISA | Rahimiand Ameri, 2012 |
2013 | 32 | Croatia | 2 (6.2) | 7.6±8.94° | 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.