消费后的水管烟草废物(PWTW)是一种未被识别的危险废物,其产生并大量释放到水生环境中。它可能含有大量的各种污染物,包括PAH,到目前为止,没有关于PWTW浸出到水生环境中的PAH污染潜力的研究。在这项研究中,通过果味和传统烟草渗滤液的PWTW将PAH浓度分为三种水类型,包括蒸馏水(DW),对不同接触时间的自来水(TW)和海水(SW)进行了评价。与传统烟草相比,具有水果味PWTW浸出液的水域中PAH的浓度水平显着升高(P值<0.05)。DW中PAH的浓度水平,总接触时间为2个月时,TW和SW的范围为0.13~3.51,0.12~3.63,0.11~3.64μg/L,分别。较低分子量的PAH,如萘(Naph),在15分钟的短暂接触时间后,立即在渗滤液中检测到乙炔(Acen)和氟(Flu)。较高分子量的PAH,包括苯并[a]蒽(BaA),苯并[b]荧蒽(BbF),苯并[k]荧蒽(BkF),chrysene(Chr),与苯并[a]芘(BaP)接触1个月后,而茚并[1,2,3-cd]芘(Indp),苯并[ghi]二甲苯(BghiP)和二苯并[a,h]蒽(DahA)仅在两个月的接触时间测量中观察到。通过向SW样品中添加叠氮化钠作为抗菌剂和化学防腐剂,高浓度的PAH,包括IP,观察到DahA和BghiP。接触两个月后,水样中PAH的浓度水平高于世界卫生组织(WHO)和其他国际组织提供的水质标准。
Post-consumption waterpipe tobacco waste (PWTW) is an unrecognized type of hazardous waste that is produced and released in large quantities into the aquatic environment. It may contain high amounts of various pollutants including PAH, and to date, there has been no research on the potential for contamination by PAH from PWTW leaching into aquatic environments. In this
study, the concentrations of PAH via PWTW of fruit-flavored and traditional tobacco leachate into three water types, including distilled water (DW), tap water (TW) and sea water (SW) at different contact times were evaluated. There were significantly higher concentration levels of ƩPAH in waters with leachates from fruit-flavored PWTW than traditional tobacco (P-value<0.05). The concentration levels of ƩPAH in DW, TW and SW at a total contact time of two months ranged from 0.13 to 3.51, 0.12 to 3.63 and 0.11-3.64 μg/L, respectively. Lower molecular weight PAH such as naphthalene (Naph), acenaphthylene (Acen) and fluorine (Flu) were detected in leachates immediately after a short contact time of 15 min. Higher molecular weight PAH including benzo [a]anthracene (BaA), benzo [b]fluoranthene (BbF), benzo [k]fluoranthene (BkF), chrysene (Chr), and benzo [a]pyrene (BaP) were detected after one month contact time, while indeno [1,2,3-cd] pyrene (Indp), benzo [ghi]perylene (BghiP) and dibenz [a,h]anthracene (DahA) were only observed at the contact time measurement of two months. By adding sodium azide as an antimicrobial agent and chemical preservative to SW samples, higher concentrations of PAH including IP, DahA and BghiP were observed. The concentration levels of PAH in water samples after two months contact time were higher than water quality standards provided by the World Health Organization (WHO) and other international organizations.