Shenzhen Xunke Standard Formaldehyde and Environmental Pollution Testing

Decoration pollution detection Air pollution detection Indoor air pollution detection Indoor decoration pollution detection Decoration air detection
Measurement of ammonia in indoor air
1. Physical properties and hazards of ammonia
Colorless gas , dissolves in water and ethanol, and forms ammonia hydroxide after dissolving in water, commonly known as ammonia water. Ammonia gas can enter the human body through the skin and respiratory tract and cause poisoning. It has a rapid effect and strong irritation on the eyes, throat, and upper respiratory tract. Long-term exposure to low-concentration ammonia can cause laryngitis and hoarseness. In severe cases, laryngeal edema, laryngospasm, dyspnea, pulmonary edema, coma, shock and even suffocation may occur.
2. Sources of ammonia pollution
.Indoor drainage pipes
Due to insufficient water storage, the drainage pipe trap cannot seal the rise and escape of gas in the sewer system.
.Interior decoration materials
Additives and brighteners used for furniture finishing. This type of ammonia contamination is limited to the surface and has a rapid release period. It disappears in the circulating air in about ~ months and is less harmful.
.Concrete admixtures
Urea antifreeze
Urea has high solubility in water and can be decomposed into ammonia and sodium carbonate or ammonium chloride when heated in a strong alkaline environment. When concrete dries An irritating odor gradually escapes into the air.
Organic amine early-strength additives
The dosage in concrete is very small (within parts per thousand) and generally does not cause serious pollution.
Indoor environment monitoring Indoor air monitoring
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