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[48] [49] [50] Nitrate levels above 10 mg/L (10 ppm) in groundwater can cause 'blue baby syndrome' (acquired methemoglobinemia). [51] The nutrients, especially nitrates, in fertilizers can cause problems for ecosystems and for human health if they are washed off into surface water or leached through the soil into groundwater.
Human health effects of eutrophication derive from two main issues excess nitrate in drinking water and exposure to toxic algae. [50] Nitrates in drinking water can cause blue baby syndrome in infants and can react with chemicals used to treat water to create disinfection by-products in drinking water. [ 51 ]
Most side effects are direct consequences of the vasodilation and the resultant low blood pressure. They include headache ("nitrate headache") resulting from the widening of blood vessels in the brain, reflex tachycardia (fast heart rate), flush, dizziness, nausea and vomiting. These effects usually subside after a few days if the treatment is ...
Cancer. According to the CDC, cancer is the No. 2 leading cause of death in older Americans, behind only heart disease. SeniorCaring.org reports that the cancers most likely to affect people over ...
Hexyl nitrite like other alkyl nitrites, [9] is a vasodilator resulting in the expansion of blood vessels, thus lowering blood pressure. Side effects can be headaches, flushing, heart rate increase, dizziness, and relaxation of involuntary muscles, such as the internal and external anal sphincter. Overdoses can cause nausea and fainting. It is ...
Pairing a retinol with an ultra hydrating night cream, like RoC Retinol Correxion Deep Wrinkle Anti-Aging Night Cream, is a good way to make sure that hydrating ingredients balance out the intense ...
Nitrates used in agricultural fertilizers may leak into the ground and may contaminate well water. The current EPA standard of 10 ppm nitrate-nitrogen for drinking water is specifically set to protect infants. [13] Benzocaine applied to the gums or throat (as commonly used in baby teething gels, or sore throat lozenges) can cause methemoglobinemia.