MicroSpacer is FDA 510K approved as substantially equivalent to other spacer devices, and is the smallest aerosol asthma inhaler spacer on the market. Replace every 4-6 months. Box contains one (1) MicroSpacerÂ® device and full instructions.
Question and answer. A chemical in groundwater that can cause genetic changes is called a: (A) teratogen (B) VOC (C) carcinogen (D) mutagen. A chemical in groundwater that can cause genetic changes is called a: (D) mutagen.Expert answered| Florpe |Points 70|. Question.uestion and answer. A chemical in groundwater that can cause genetic changes is called a: (A) teratogen (B) VOC (C) carcinogen (D) mutagen. A chemical in groundwater that can cause genetic changes is called a: (D) mutagen. Expert answered| Florpe |Points 70|.
HFO can act as an electron acceptor in the biodegradation process of benzene (which acts as an electron donor), resulting in the solubilization of HFO, which then releases the adsorbed arsenic into the groundwater. The result is that dissolved iron and arsenic increase in the groundwater.ote that the small difference in dissolved arsenic and iron concentrations do not appreciably change the reservoir of arsenic (3.03 mg/Kg) and iron (810 mg/Kg) in the solid phase.