Concentrations and health risks of lead, cadmium, arsenic, and mercury in rice and edible mushrooms in China

• In this study, four common heavy metals, lead (Pb), cadmium (Cd), arsenic (As) and mercury (Hg) in rice and edible mushrooms of China were studied to evaluate contamination level and edible safety. Ninety two (92) rice samples were collected from the main rice growing regions in China, and 38 fresh and 21 dry edible mushroom samples were collected from typical markets in Nanjing City. The analyzed metal concentrations were significantly different between rice and edible mushroom samples (p < 0.05). The results showed that Pb, Cd and As contents in 4.3%, 3.3% and 2.2% rice samples respectively, were above maximum allowable concentration (MAC). In fresh edible mushroom, Pb and Hg contents in 2.6% samples were above MAC, respectively. However, only Hg content in 4.8% dry edible mushroom samples was above its MAC. Therefore, more than 95% rice and edible mushroom samples in our test had high edible safety. © 2013 Elsevier Ltd. All rights reserved.

Ämnesord

NATURVETENSKAP  -- Biologi -- Biokemi och molekylärbiologi (hsv//swe)

NATURAL SCIENCES  -- Biological Sciences -- Biochemistry and Molecular Biology (hsv//eng)

Nyckelord

Edible mushroom

Health risk

Heavy metal

Rice

Cadmiums (Cd)

Contamination levels

Growing regions

Mercuries (Hg)

Metal concentrations

Nanjing cities

Arsenic

Cadmium

Health risks

Heavy metals

Lead

Mercury (metal)

Fungi

mercury

article

China

food contamination

food safety

health hazard

maximum allowable concentration

nonhuman

risk assessment

Basidiomycota

Publikations- och innehållstyp

ref (ämneskategori)

art (ämneskategori)