https://pypi.org/project/utopia-pkg/ Recent updates to the Python Package Index for utopia-pkg en https://pypi.org/project/utopia-pkg/0.1.4/ package to run the UTOPIA unit world model to estimate mass and particle distribution of microplastics in a unit world model composed of 17 compartments covering air, water, soil and sediments. Results are given for 5 size fractions ranging from hundreds of nanometers to milimiters and 4 aggregation states. Exposure indicators such as persistence and characteristic travel distance are also given as outputs. Fri, 31 Oct 2025 12:28:10 GMT