Díaz-Mendoza Claudia, Mouthon-Bello Javier, Botero Camilo M, Gutiérrez Leonardo
Faculty of Engineering, Universidad Tecnológica de Bolívar, Cartagena, Colombia.
Faculty of Engineering of the University of Cartagena, Cartagena, Colombia.
Environ Monit Assess. 2024 Dec 27;197(1):106. doi: 10.1007/s10661-024-13572-4.
Cigarette butts are classified as plastic waste due to their composition of cellulose acetate fibers and are commonly found in beach sand. Their persistence in the environment, low biodegradability, and potential to interact with metals and metalloids during the aging process make them a significant subject of interest for research on coastal marine ecosystems. The aim of this study is to investigate the presence of metals such as hexavalent chromium Cr (VI), cadmium (Cd), and the metalloid arsenic (As) in cigarette butts (CBs), cigarette butt fibers (CBFs), and sand on a tourist beach in Cartagena, Colombia. The goal is to establish a baseline for potential contamination on the beach due to these elements. The methodology includes collecting samples of CBs, CBFs, and sand from different beach usage zones (active, rest, and service) and conducting standardized laboratory tests using atomic absorption spectroscopy for As and Cd and the standard colorimetric method for Cr (VI). The main findings indicate that arsenic levels reached 7.69, 5.75, and 3.47 mg As/kg in the sand, CBs, and CBFs, respectively. Cadmium and hexavalent chromium were found to be below the detection limit for the applied methodology. Additionally, mercury was detected at a concentration of 0.37 mg Hg/L in CBFs in the active zone in October.
烟头因其醋酸纤维素纤维的成分被归类为塑料垃圾，并且在沙滩上很常见。它们在环境中的持久性、低生物降解性以及在老化过程中与金属和类金属相互作用的可能性，使其成为沿海海洋生态系统研究的一个重要课题。本研究的目的是调查哥伦比亚卡塔赫纳一个旅游海滩上的烟头（CBs）、烟头纤维（CBFs）和沙子中六价铬 Cr（VI）、镉（Cd）等金属以及类金属砷（As）的存在情况。目标是为该海滩因这些元素可能造成的污染建立一个基线。方法包括从不同的海滩使用区域（活动区、休息区和服务区）收集CBs、CBFs和沙子的样本，并使用原子吸收光谱法检测As和Cd，以及使用标准比色法检测Cr（VI）进行标准化实验室测试。主要研究结果表明，沙子、CBs和CBFs中的砷含量分别达到7.69、5.75和3.47毫克砷/千克。镉和六价铬在所采用的方法检测限以下。此外，10月份在活动区的CBFs中检测到汞浓度为0.37毫克汞/升。
