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Humans can smell chlorine gas at ranges from 0.1–0.3 ppm. According to a review from 2010: "At 1–3 ppm, there is mild mucous membrane irritation that can usually be tolerated for about an hour. At 5–15 ppm, there is moderate mucous membrane irritation. At 30 ppm and beyond, there is immediate chest pain, shortness of breath, and cough.
Effects depend on the substance; hydrogen peroxide removes a bleached layer of skin, while nitric acid causes a characteristic color change to yellow in the skin, and silver nitrate produces noticeable black stains. Chemical burns may occur through direct contact on body surfaces, including skin and eyes, via inhalation, and/or by ingestion.
"Symptoms [of bleach burn] include redness and itching on the scalp," Dr. Saedi says, "It can happen immediately after the treatment. It feels similar to a burn on other parts of the skin."
The highest concentration of TCDD in fat tissue was 144,000 pg/g, the highest ever reported in human beings. The main feature was chloracne, a serious skin disease. The victim survived, and other symptoms were modest after initial gastrointestinal symptoms and amenorrhea. [26]
A cherry red skin color that darkens may be present as the result of increased venous hemoglobin oxygen saturation. Despite the similar name, cyanide does not directly cause cyanosis. [11] A fatal dose for humans can be as low as 1.5 mg/kg body weight. [12] Other sources claim a lethal dose is 1–3 mg per kg body weight for vertebrates. [13]
Contact dermatitis is a type of acute or chronic inflammation of the skin caused by exposure to chemical or physical agents. [1] Symptoms of contact dermatitis can include itchy or dry skin, a red rash, bumps, blisters, or swelling. These rashes are not contagious or life-threatening, but can be very uncomfortable.
Even when spider do bite, normal ones typically cause a red raise bump that might itch and may only have mild symptoms of skin irritation. A Joro spider bite may have the same type of reaction ...
Depending on the type and amount of irritant gas inhaled, victims can experience symptoms ranging from minor respiratory discomfort to acute airway and lung injury and even death. A common response cascade to a variety of irritant gases includes inflammation , edema and epithelial sloughing , which if left untreated can result in scar formation ...