Mediterranean microplastic contamination: Israel's coastline contributions.

Area of Science:

• Environmental Science
• Marine Biology
• Pollution Studies

Background:

• Microplastic (MP) pollution is a growing global concern, impacting marine ecosystems.
• Understanding MP sources and distribution is crucial for effective environmental management.

Purpose of the Study:

• To analyze the extent and characteristics of microplastic contamination on the Mediterranean coastline of Israel.
• To identify potential sources of microplastic pollution in the study area.

Main Methods:

• Monitoring of six strategic coastal sites representing diverse environments.
• Characterization of microplastic types, morphologies (fragmented, film, pellets), and polymers (polyethylene, polypropylene).
• Analysis of microplastic-associated biofilm and metal residues.

Main Results:

• Tel Aviv and Hadera, near stream estuaries, showed high MP contamination (18,777 particles/m³).
• Fragmented and film morphologies were most prevalent, with polyethylene and polypropylene as common polymers.
• Detected microplastics were contaminated with biofilms, diatoms, and metal residues.

Conclusions:

• Local rivers are significant contributors to microplastic pollution along Israel's Mediterranean coast.
• Microplastic contamination poses a potential threat to both environmental and human health.
• Spatial analysis highlights the impact of estuarine proximity on microplastic accumulation.