Search results
Results from the WOW.Com Content Network
Standard containment devices such as fume hoods, glove boxes, use of high efficiency particulate air (HEPA) filters, ventilated containment or weighing, or placing the carcinogenic substance in a sealed weighed container (Tare Method). The employment of these methods and equipment can help reduce the unnecessary exposure to the carcinogens.
A food contaminant is a harmful chemical or microorganism present in food, which can cause illness to the consumer. Contaminated food The impact of chemical contaminants on consumer health and well-being is often apparent only after many years of processing and prolonged exposure at low levels (e.g., cancer ).
The molds can colonize and contaminate food before harvest or during storage, especially following prolonged exposure to a high-humidity environment, or to stressful conditions such as drought. Aflatoxin contamination is increasing in crops such as maize as a result of climate change creating better conditions for these molds.
As a new study identifies nearly 200 chemicals in food packaging that may increase the likelihood of breast cancer, experts share tips on what people can do to reduce their exposure.
Examples of activation-independent carcinogens include ultraviolet light, ionizing radiation and alkylating agents. [21] The time from exposure to a carcinogen to the development of cancer is known as the latency period. For most solid tumors in humans the latency period is between 10 and 40 years depending on cancer type. [22]
Different food preservation methods have different impacts on the quality of the food and food systems. Some traditional methods of preserving food have been shown to have a lower energy input and carbon footprint compared to modern methods. [3] [2] Some methods of food preservation are also known to create carcinogens.
After scientists discovered the carcinogenic components in cigarette smoke, they questioned whether carcinogens could also be found in smoked/burned foods, such as meats. [3] In 1977, cancer-causing compounds heterocyclic amines were discovered in food as a result of household cooking processes.
Toxic wastes often contain carcinogens, and exposure to these by some route, such as leakage or evaporation from the storage, causes cancer to appear at increased frequency in exposed individuals. For example, a cluster of the rare blood cancer polycythemia vera was found around a toxic waste dump site in northeast Pennsylvania in 2008. [4]