How Does cadmium Get in food?
It is deposited onto the earth below by rain or falling out of the air. Once on the ground, cadmium moves easily through soil layers and is taken up into the food chain by uptake by plants such as leafy vegetables, root crops, cereals and grains (ATSDR 1999).
What vegetables are high in cadmium?
High Cd accumulators include lettuce, spinach, cabbage, some potato varieties, sweet potatoes, carrots, beets, eggplant, and peas. Low Cd accumulators include cucumbers, snap beans, and sweet corn. 4) Soil pH affects the uptake of cadmium by crops. Soil pH of less than 5.5 increased Cd uptake.
What causes high levels of cadmium?
Eating foods contaminated with high levels of cadmium, such as shellfish, liver, kidney, potatoes, and leafy vegetables. Drinking water contaminated with cadmium. Breathing in cigarette smoke, which doubles the average daily intake of cadmium.
What is the main source of cadmium to humans?
In the general population, exposure to cadmium occurs primarily by eating certain foods if grown ion contaminated soil. In the general population, cigarette smoke is one of the highest sources of cadmium exposure for smokers.
How does the body get rid of cadmium?
Absorbed cadmium is eliminated from the body primarily in urine. The rate of excretion is low, probably because cadmium remains tightly bound to metallothionein, MTN, which is almost completely reabsorbed in the renal tubules. Because excretion is slow, cadmium accumulation in the body can be significant.
How do you get cadmium out of your body?
How do you know if you have cadmium poisoning?
Cadmium is used for many items, including electroplating, storage batteries, vapor lamps and in some solders. The onset of symptoms may be delayed for two to four hours after exposure. Overexposure may cause fatigue, headaches, nausea, vomiting, abdominal cramps, diarrhea, and fever.
How long does cadmium stay in the body?
Blood: Long cadmium half-life (30 years) may be due to long term accumulation of cadmium in the body but the short half-life of cadmium in blood (three to four months) could have result in a recent exposure. The limit of detection for blood cadmium concentration is 0.3 µg/L (52).