Hundreds of London Underground workers could have been exposed to(暴露于) asbestos(石棉) for almost 20 years without protection required under safety regulations(法规), according to documents seen by the Guardian.
据《卫报》查阅的文件显示，数百名伦敦地铁工人可能在近20年里暴露于石棉环境，却未获得安全法规所要求的防护。
Under 2002 rules on controlling asbestos and other hazardous(危险的) materials, employers are required to take a series of(一系列) precautions(预防措施), including ensuring exposed workers are given individually fitted face masks to prevent inhalation(吸入) of toxic(有毒的) dust.
根据2002年关于控制石棉及其他危险材料的法规，雇主必须采取一系列预防措施，包括确保接触石棉的工人获得单独定制的口罩，以防止吸入有毒粉尘。
Emails and minutes(会议纪要) of meetings reveal that London Underground managers admitted that face-fitted masks were not issued to staff until as late as(直到...才) 2020.
电子邮件和会议纪要显示，伦敦地铁管理人员承认，直到2020年底才向员工发放密合式口罩。