Throat irritation

Full eye protection should be worn whenever handling acryhc monomers contact lenses must never be worn. Prolonged exposure to Hquid or vapor can result in permanent eye damage or blindness. Excessive exposure to vapors causes nose and throat irritation, headaches, nausea, vomiting, and dizziness or drowsiness (solvent narcosis). Overexposure may cause central nervous system depression. Both proper respiratory protection and good ventilation are necessary wherever the possibiHty of high vapor concentration arises. 

Formaldehyde causes eye, upper respiratory tract, and skin irritation and is a skin sensitizer. Although sensory irritation, eg, eye irritation, has been reported at concentrations as low as 0.1 ppm in uncontrolled studies, significant eye/nose/throat irritation does not generally occur until concentrations of 1 ppm, based on controlled human chamber studies. Odor detection has commonly been reported to occur in the range of 0.06—0.5 ppm (133—135). 

Hydrogen chloride in air is an irritant, severely affecting the eye and the respiratory tract. The inflammation of the upper respiratory tract can cause edema and spasm of the larynx. The vapor in the air, normally absorbed by the upper respiratory mucous membranes, is lethal at concentrations of over 0.1% in air, when exposed for a few minutes. HCl is detectable by odor at 1—5 ppm level and becomes objectionable at 5—10 ppm. The maximum concentration that can be tolerated for an hour is about 0.01% which, even at these levels, causes severe throat irritation. The maximum allowable concentration under normal working conditions has been set at 5 ppm. 

The threshold limit value—time integrated average, TLV—TWA, of chlorine dioxide is 0.1 ppm, and the threshold limit value—short-term exposure limit, STEL, is 0.3 ppm or 0.9 mg /m of air concentration (87,88). Chlorine dioxide is a severe respiratory and eye irritant. Symptoms of exposure by inhalation include eye and throat irritation, headache, nausea, nasal discharge, coughing, wheezing, bronchitis, and delayed onset of pulmonary edema. Delayed deaths occurred in animals after exposure to 150—200 ppm for less than one hour. Rats repeatedly exposed to 10 ppm died after 10 to 13 days of exposure. Exposure of a worker to 19 ppm for an unspecified time was fatal. The ingested systemic effects of low concentration chlorine dioxide solutions are similar to that of chlorite. 

Chemical Sensitization Evidence suggests that some people may develop health problems characterized by effects such as dizziness, eye and throat irritation, chest tightness, and nasal congestion that appear whenever they are exposed to certain chemicals. People may react to even trace amounts of chemicals to which they have become "sensitized."... 

Coughing, eye irritj sense of smell after minutes. Altered re i s, and drowsi. t 3u minutes, followed by throat irritation after one hour. 1 exposine results in a grai increase in the severity o symptoms. 

Humans experience a wide range of acute adverse health effects, including irritation, narcosis, asphyxiation, sensitization, blindness, organ system damage, and death. In addition, the severity of many of these effects varies with intensity and duration of e.xposure. For example, exposure to a substance at an intensity that is sufficient to cause only mild throat irritation is of less concern than one that causes severe eye irritation, lacrimation, or dizziness, since the latter effects arc likely to impede escape from the area of contamination. 

Nasen-. (Physiol.) nasal, naso-. -bluten, n. nosebleed, epistaxis. -loch, n., -offnung, /. nostril, -racheorelzstoff, m. nose and throat irritant, sternutator. -reizstoff, m. nose irritant, sternutator, -schlacke, /. (Metal.) tuyere (twyer) slag, -schleim, m. nasal mucus, -schleimhaut, /. mucous membrane of the nose. 

Rachen-lehre, /. calipers, -reizstoff, m. throat irritant. 

Eye, nose, and throat irritation dizziness lethargy fever. May act as asthma trigger may transmit humidifier fever influenza, common cold, tuberculosis and other infectious diseases. 

At typical indoor concentrations, COj is not thought to be a direct cause of adverse health effects however, COj is an easily-measured surrogate for other occupant-generated pollutants. Eye, nose, and throat irritation headaches lung cancer may contribute to heart disease buildup of fluid in the middle ear increased severity and frequency of asthma episodes decreased lung function. ETS is also a source of odor and irritation complaints. 

Eye, nose, and throat irritation headaches, nausea. Some VOCs are suspected or known carcinogens or causes of adverse reproductive effects. Some VOCs also have unpleasant odors or are irritants. VOCs are thought to be a cause of non-specific health symptoms. 

Median concn detectable (by nasal and throat irritation). 0.9mg/m3... 

The more common adverse reactions associated witii die mast cell stabilizers include headache, dizziness, nausea, fatigue, hypotension, or unpleasant taste in the mouth. These dm may cause nasal or throat irritation when given intranasally or by inhalation. A more complete listing of the adverse reactions associated with the mast cell stabilizers is found in the Summary Drug Table Antiastiima Dru i. 

Gargle or rinse the mouth after each dose to relieve dry moutli and throat irritation. 

Do not chew tablets or capsules. Swallow the whole form of the drug quickly, while sitting upright to enhance swallowing and prevent mouth and throat irritation. Eat immediately after taking the drug. 

Effects noted in study and corresponding doses Mild subjective neurological effects (eye and throat irritation, headache, fatigue, drowsiness) were reported at 200 ppm (LOAEL). No objective effects, as measured by dexterity and coordination tests, were seen. However, 50% of the subjects reported that the neurobehavioral tests required greater mental effort for them to perform. 

Hydrochloric acid Clear, colorless liquid with no fire or explosion hazard. It is a moderate irritant to the skin, eyes, and mucous membranes and by ingestion and inhalation. Throat irritation occurs with concentrations of 35 ppm. Highly reactive with a wide variety of substances. 

Masks can be used on repeated occasions provided the cartridge is not exhausted. A cartridge approaching exhaustion can be identified in use by odor, taste, or eye, nose, and throat irritation while in use. Wherever odor or irritation is encountered when wearing a cartridge respirator or where the wearer feels dizzy or breathing becomes difficult, the wearer should immediately leave the area and replace the respirator. 

Symptoms of exposure An asphyxiant. Inhalation may cause hallucinations, distorted perception, and eye, nose, and throat irritation. At high concentrations drowsiness, lightheadedness, and narcosis may occur (Patnaik, 1992). Contact of liquid with skin may result in frostbite (NIOSH, 1997). 

Symptoms of exposure Exposure to 200-400 ppm may cause moderate eye and throat irritation... 

Symptoms of exposure Vapor inhalation may cause lacrimation, coughing, and throat irritation (Patnaik, 1992). 

Symptoms of exposure Severe irritation of the skin, eyes, and mucous membranes. Eye contact with liquid may cause corneal opacity and loss of vision. Inhalation of vapors may cause eye, nose, throat irritation, and breathing difficulties (Patnaik, 1992). An irritation concentration of 200.00 mg/m in air was reported by Ruth (1986). 

Symptoms of exposure Eye, nose, and throat irritant coughing, bronchospasm, pulmonary irritation, dermatitis, nausea, vomiting, loss of consciousness (NIOSH, 1997)... 

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