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Cultivation of cannabis is the production of cannabis infructescences ("buds" or "leaves"). Cultivation techniques for other purposes (such as hemp production) differ.. In the United States, all cannabis products in a regulated market must be grown in the state where they are sold because federal law continues to ban interstate cannabis sales.
Between the blood lead levels of 5 and 35 μg/dL, an IQ decrease of 2–4 points for each μg/dL increase is reported in children. [42] However, studies that show associations between low-level lead exposure and health effects in children may be affected by confounding and overestimate the effects of low-level lead exposure. [83]
They are representative of the level of contamination above which a serious case of soil contamination is deemed to exist. The target values for soil are adjusted for the organic matter ( humus ) content and soil fraction <0.2 μm ( Lutum - Latin, meaning "mud" or "clay").
Fruit and vegetables can be contaminated by high levels of lead in the soils they were grown in. Soil can be contaminated through particulate accumulation from lead in pipes, lead paint, residual emissions from leaded gasoline. [277] The use of lead for water pipes is a problem in areas with soft or acidic water. [278]
The FDA guidance caps lead levels for children younger than 2 at 10 parts per billion for fruits, most vegetables, grain and meat mixtures, yogurts, custards and puddings, and single-ingredient meats.
Blood lead level (BLL), is a measure of the amount of lead in the blood. [1] [2] Lead is a toxic heavy metal and can cause neurological damage, especially among children, at any detectable level. High lead levels cause decreased vitamin D and haemoglobin synthesis as well as anemia, acute central nervous system disorders, and possibly death. [3]
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