Litter (except micro-litter) on the Lithuanian Baltic Sea coast (BAL-LT-AA-04) was monitored on ten beaches. The observations identified all beach litter present in the 100 m research transect and assessed different items of coastal litter. An assessment of coastal litter by type of material shows that debris from artificial polymer materials dominated the total amount of litter (around 85 % of the total). This ratio was close to the last period’s estimate of 83 % of the total amount of litter (2012-2016 data). The relative amount of paper and cardboard debris has increased compared to the previous period (5.5 % in the reference period and 0.9 % in the previous period of the total amount of debris); glass/ceramics (1.2 % in the reporting period, 4.0 % in the previous period) and metal litter (2.5 % in the reporting period, 5.0 % in the previous period). On average, 105 items of litter per 100 m of beach were found on beaches. Most of them were found on Palanga beach, inside. 176 units/100 m, with the minimum on Nida beach being inside. 49 units/100 m. Litter is most frequently detected as cigarette butts. The GES value was not achieved at any of the survey sites (0 %), although the trend in terms of values is improving.

Baltijos jūros dugno tralavimų (tyrimų laikotarpiu (2018-2023 m.) 72 kartai Lietuvos jūriniuose vandenyse, BAL-LT-AA-03) duomenys parodė, kad 61 tralavimų metu (84,7 proc.) buvo aptikta nors viena jūrinę aplinką teršianti šiukšlė. Aptiktų šiukšlių kiekis tyrimų periodu kito nuo 1 iki 30 vnt., arba perskaičiavus ploto vienetui – nuo 0,72 vnt./km2 iki 23,5 vnt./km2. Dažniausiai tralavimo vietose buvo aptinkama 1–10 šiukšlių.