Most studies show the amount of caffeine in two American cups of coffee (about 8 ounces each) can raise your systolic blood pressure 3 to 14 mm Hg and diastolic blood pressure 4 to 13 mm Hg, at least in the short term. One study does show much lower numbers, but an increase is associated nonetheless.
Low levels of formaldehyde in indoor air are actually very common. When found at high levels in air, it can be detected by a sharp smell. High concentrations of formaldehyde can cause irritation of the eyes, nose and throat and can worsen asthma symptoms in children and infants.ll houses had at least some formaldehyde in indoor air. On average, formaldehyde levels measured over a day in Canadian homes were 20-40 Î¼g/m 3 (16-32.5 ppb). Daily levels as high as 95 Î¼g/m 3 (77 ppb), however, have been recorded.
Formaldehyde is a common contaminant in indoor air as it outgases from fabricated wood products, paints, adhesives, fabrics etc. It is toxic and the Occupational Safety & Health Administration (OSHA) guideline for formaldehyde exposure is less than 750 ppb (0.75 parts-per-million (ppm)) over an 8-hour period.ver time a steady state level of formaldehyde is reached that is based on a variety of variables including the output of the hydroxyl generator, concentration of the influx of VOCâs, ambient formaldehyde levels, room ventilation rate, humidity, system fan speed, etc..