Mass Spectrometry Laboratory, Environmental Health Sciences Department, IRCCS Istituto Mario Negri, Via La Masa 19, 20156, Milano, Italy.
Ecopneus Scpa, Via Messina 38, Torre B, 20154, Milano, Italy.
Chemosphere. 2017 Oct;184:1320-1326. doi: 10.1016/j.chemosphere.2017.06.093. Epub 2017 Jun 21.
A large number of end-of-life tires (ELTs) were sampled and classified by type, age and origin to obtain recycled rubber samples representative of the materials placed on the Italian market. The selected recycled tire rubber samples were physically and chemically characterized and a chemometric approach was used to determine correlations. The polycyclic aromatic hydrocarbons (PAHs) content was correlated to the aromaticity index and a model was built to establish the H-Bay aromaticity index (H-Bay) from the PAH concentrations. ELT of different origin and age produced in non-European countries generally had higher PAH content and a higher H-Bay index. H-Bay values of all the samples were lower than the REACH limits and old tires had higher aromatic content than recent ones, possibly due to the replacement of aromatic oils in tire production.
大量的废旧轮胎（ELTs）按类型、年龄和来源进行了采样和分类，以获得具有代表性的再生橡胶样品，这些样品代表了投放意大利市场的材料。对选定的再生轮胎橡胶样品进行了物理和化学特性分析，并采用化学计量学方法来确定相关性。多环芳烃（PAHs）的含量与芳香度指数相关联，并建立了一个模型，根据 PAH 浓度建立 H-Bay 芳香度指数（H-Bay）。来自非欧洲国家的不同来源和年龄的废旧轮胎通常具有更高的 PAH 含量和更高的 H-Bay 指数。所有样品的 H-Bay 值均低于 REACH 限值，旧轮胎的芳香度含量高于新轮胎，这可能是由于轮胎生产中芳烃油的替代。
