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The prevalence of silicosis led some men to grow what is called a miner's mustache, in an attempt to intercept as much dust as possible. [citation needed] Chronic simple silicosis has been reported to occur from environmental exposures to silica in regions with high silica soil content and frequent dust storms. [41]
Workplace exposure to silica dust or asbestos is also associated with pulmonary heart disease. There is evidence that workplace exposure to lead, carbon disulfide, or phenoxy acids containing TCDD, as well as working in an environment where aluminium is being electrolytically produced, are associated with stroke.
When the cell wall proteins, polygalacturonase and expansin are prevented from being produced in fruits, they are less susceptible to the fungus Botrytis cinerea than normal tomatoes. [ 29 ] [ 30 ] Pest-resistant tomatoes can reduce the ecological footprint of tomato production, while at the same time increase farm income.
Silica ingested orally is essentially nontoxic, with an LD 50 of 5000 mg/kg (5 g/kg). [22] A 2008 study following subjects for 15 years found that higher levels of silica in water appeared to decrease the risk of dementia. An increase of 10 mg/day of silica in drinking water was associated with a reduced risk of dementia of 11%. [70]
Colloidal silica gel with light opalescence. Silica gel is an amorphous and porous form of silicon dioxide (silica), consisting of an irregular tridimensional framework of alternating silicon and oxygen atoms with nanometer-scale voids and pores. The voids may contain water or some other liquids, or may be filled by gas or vacuum.
There is still debate in the scientific community as to why plants form phytoliths, and whether silica should be considered an essential nutrient for plants. [4] Studies that have grown plants in silica-free environments have typically found that plants lacking silica in the environment do not grow well.
Tomatoes are an excellent source of vitamin C, a nutrient that is known for its role in immune health. Vitamin C contributes to many other bodily processes, such as wound healing, collagen ...
Bags of silica sand used for sandblasting now carry labels warning the user to wear respiratory protection to avoid breathing the resulting fine silica dust. Safety data sheets for silica sand state that "excessive inhalation of crystalline silica is a serious health concern." [29] In areas of high pore water pressure, sand and salt water can ...