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Formation of Dioxins from Incineration of Foods Found in Domestic Garbage

机译：焚化生活垃圾中的食物会形成二恶英

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There has been great concern about the large amounts of garbage produced by domestic households in the modern world. One of the major sources of dioxins (PCDDs, PCDFs, and coplanar PCBs) in the environment is the combustion of domestic waste materials. Exhaust gases from an incinerator, in which mixtures of 67 food items-including fruits, vegetables, pasta, seafoods, meats, and processed foods and seasoned foods-were analyzed for dioxins. Gases collected at the chimney port (9.15 ng/g) contained less total dioxins than those collected at the chamber port (29.1 ng/g). The levels of Cl{sub}1-Cl{sub}6-PCDDs and Cl{sub}1-Cl{sub}5-PCDFs were much lower in the gas collected at the chimney port than in the gas collected at the chamber port. The levels of Cl{sub}7-Cl{sub}8-PCDDs and Cl{sub}6-Cl{sub}8-PCDFs were higher in the gas collected at the chimney port than in the gas collected at the chamber port. A total of Cl{sub}4-Cl{sub}8-PCDDs (1.84-3.04 ng/g) comprised over 80% of the total PCDDs formed (2.24-4.00 ng/g). Total PCDFs (16.2-22.6 ng/g) comprised 78-86% of the total dioxins formed (18.9-29.1 ng/g). The PCDFs formed in the greatest amounts were M{sub}1CDFs (9.68-10.7 ng/g). Mixtures of commonly consumed food items produced ppb levels of total dioxins in exhaust gases upon combustion, suggesting that incineration of domestic food wastes is one of the sources of dioxins in the environment. A mixture containing some seasoned foods, such as mayonnaise spread on bread, produced more dioxins (29.1 ng/g) than a mixture without seasoned foods did (18.9 ng/g).
机译：在现代世界中，家庭住户产生的大量垃圾备受关注。环境中二恶英（PCDDs，PCDFs和共面多氯联苯）的主要来源之一是生活垃圾的燃烧。分析了焚烧炉的废气，其中包括水果，蔬菜，面食，海鲜，肉类，加工食品和调味食品等67种食品的混合物中的二恶英。在烟囱口收集的气体（9.15 ng / g）所含的二恶英总量比在室口收集的气体（29.1 ng / g）少。 Cl {sub} 1-Cl {sub} 6-PCDDs和Cl {sub} 1-Cl {sub} 5-PCDFs的水平在烟囱口收集的气体中比在室口收集的气体中低得多。在烟囱口收集的气体中Cl {sub} 7-Cl {sub} 8-PCDDs和Cl {sub} 6-Cl {sub} 8-PCDFs的水平高于在室口收集的气体。总共Cl {sub} 4-Cl {sub} 8-PCDDs（1.84-3.04 ng / g）占形成的全部PCDDs（2.24-4.00 ng / g）的80％以上。 PCDF总量（16.2-22.6 ng / g）占形成的二恶英总量（18.9-29.1 ng / g）的78-86％。形成的PCDF最多为M {sub} 1CDF（9.68-10.7 ng / g）。常见消费食品的混合物在燃烧时产生的废气中二恶英的含量为ppb，这表明焚化家庭食物垃圾是环境中二恶英的来源之一。包含一些调味食品（例如撒在面包上的蛋黄酱）的混合物产生的二恶英（29.1 ng / g）比不含调味食品的混合物产生的二恶英（18.9 ng / g）更多。

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