Total and partial restrictions to beach access during COVID-19 pandemic created an opportunity to evaluate its effect on coastal pollution. We aimed to determine the impact of access restrictions on solid waste pollution at Copacabana beach, Brazil. Solid waste amount was analyzed considering beach access restrictions: unrestricted, total closure, partial restriction, new normal. Relationships of atmospheric temperature and precipitation with access restrictions were assessed and confounding effects controlled for further analyses. Beach access restrictions significantly reduced solid waste pollution at Copacabana beach, beach closure reduced waste amount in 72 %. Partial restrictions and new normal periods have significantly reduced solid wastes amount on the beach in 60 % and 36.88 %, respectively. Qualitative data revealed that most of solid wastes were single-use plastics recently disposed at Copacabana beach, reflecting beachgoer's effects on waste left on the beach. A positive impact of COVID-19 pandemic restrictions was detected on solid waste pollution at Copacabana beach.

在 COVID-19 大流行期间对海滩准入的全部和部分限制创造了一个机会来评估其对沿海污染的影响。我们旨在确定准入限制对巴西科帕卡巴纳海滩固体废物污染的影响。分析固体废物量时考虑了海滩准入限制：无限制、全部关闭、部分限制、新常态。评估了大气温度和降水与访问限制的关系，并控制了混杂效应以进行进一步分析。海滩准入限制显着减少了科帕卡巴纳海滩的固体废物污染，海滩关闭减少了 72% 的废物量。部分限制措施和新常态期分别使海滩上的固体废物量显着减少了 60% 和 36.88%。定性数据显示，大多数固体废物是最近在科帕卡巴纳海滩处置的一次性塑料，反映出海滩游客对遗留在海滩上的废物的影响。检测到 COVID-19 大流行限制措施对科帕卡巴纳海滩的固体废物污染产生了积极影响。