OSPAR, Rake and Flood accumulation zone methods were applied at 29 beaches of the German and Lithuanian Baltic Sea coast (2011–2018) to monitor cigarette butt pollution. Also, butt pollution prevention measure - ballot bin, was tested.

The number of cigarette butts was significantly higher in Germany than in Lithuania, but the percent of butts from total litter items was similar. Rake method turned out to be suitable for cigarette butt assessment, while the OSPAR method underestimates the butt pollution.

The visitor number on the beach had a significant effect on the cigarette butt number: in remote beaches, without visitors, usually, no butts were observed, while the highest number and the percent of butts were observed in beaches with the highest number of visitors.

The ballot bin campaign may have increased the public awareness about pollution, but turned out to be in-efficient in reducing it.

在德国和立陶宛波罗的海沿岸（2011-2018年）的29个海滩上应用了OSPAR，Rake和Flood累积区方法来监测烟头污染。此外，还对防止屁股污染的措施-投票箱进行了测试。

德国的烟头数量显着高于立陶宛，但垃圾总量中烟头的百分比相似。瑞克方法被证明适用于烟头评估，而OSPAR方法低估了烟头污染。

海滩上的游客人数对烟头数量有显着影响：在偏僻的海滩上，没有游客，通常不会观察到烟头，而在游客数量最多的海滩上，烟头数量和百分比最高。

投票箱运动可能已经提高了公众对污染的认识，但事实证明，降低污染效率不高。