Table 1 Prevalence of chemical hazards in milk and cheese

Hazards	Sample	No. of positive/No. of total (%)	Reference
Aflatoxin M1	Raw milk	59/75 (78.7)	Rahimi et al. (2010a)
Aflatoxin M1	Raw milk	122/122 (100)	Kamkar et al. (2011)
Aflatoxin M1	Raw milk	37/48 (77.1)	Ayoub et al. (2011)
Aflatoxin M1	Pasteurized milk	8/37 (21.6)	Ayoub et al. (2011)
Aflatoxin M1	Cheese	61/111 (55.0)	Elkak et al. (2012)
Aflatoxin M1	Cheese	85/102 (83.3)	Anfossi et al. (2012)
Aflatoxin M1	Cheese	39/82 (47.6)	Mohajeri et al. (2013)
Ochratoxin A	Organic milk	3/63 (4.8)	Pattono et al. (2011)
Ochratoxin A	Cheese	30/92 (32.6)	Dall’Asta et al. (2008)
Roquefortine C	Cheese	84/86 (97.7)	Fontaine et al. (2015)
Mycophenolic acid	Cheese	44/86 (51.2)	Fontaine et al. (2015)
Penicillin	Raw milk	3/72 (4.2)	Adesiyun et al. (1997)
Penicillin	Raw milk	27/150 (18)	Dokuzlu and Tayar (2001)
Penicillin	Pasteurized milk	1/120 (0.8)	Kaya and Filazi (2010)
Tetracycline	Raw milk	11/150 (7.3)	Dokuzlu and Tayar (2001)
Tetracycline	Raw milk	121/324 (37.3)	Alomirah et al. (2007)
Oxytetracyclin	Pasteurized milk	1/120 (0.8)	Kaya and Filazi (2010)
Chloramphenicol	Raw milk	2/150 (1.3)	Dokuzlu and Tayar (2001)
Chloramphenicol	Raw milk	61/207 (29.4)	Alomirah et al. (2007)
Beta-lactams	Raw milk	62/308 (20.1)	Alomirah et al. (2007)
Neomycin	Raw milk	1/120 (0.8)	Kaya and Filazi (2010)
Streptomycin	Pasteurized and UHT- sterilized milk	98/126 (77.8)	Aksu et al. (2004)
Antibiotic residues	Raw milk	7/224 (3.1)	Addo et al. (2011)
Iron	Milk	100/100 (100)	Malhat et al. (2012)
Copper	Milk	95/100 (95)	Malhat et al. (2012)
Cadmium	Milk	98/100 (98)	Malhat et al. (2012)
Lead	Milk	93/100 (93)	Malhat et al. (2012)
Zinc	Milk	87/100 (87)	Malhat et al. (2012)