Standardized protocols for microplastics determinations in environmental samples from the Gulf and marginal seas

Area of Science:

• Environmental Science
• Marine Biology
• Analytical Chemistry

Background:

• Microplastics are pervasive pollutants raising environmental concerns.
• Current research on microplastics faces challenges in data comparability due to varied methodologies.
• The Gulf region lacks harmonized protocols for microplastic analysis.

Purpose of the Study:

• To propose standardized protocols for microplastic sampling, processing, identification, and reporting.
• To address limitations in current microplastic sampling, particularly for seawater, biota, and aerosols.
• To facilitate reliable comparisons of microplastic data within the Gulf region and globally.

Main Methods:

• Development of standardized protocols for sampling marine sediment, seawater, marine biota, and aerosols.
• Recommendations for sample processing and identification techniques.
• Proposal for standardized units for reporting microplastic quantification.

Main Results:

• Identified limitations in current seawater microplastic sampling methods, especially mesh size issues.
• Addressed challenges in processing marine biota and aerosol samples.
• Proposed standardized protocols for environmental matrices lacking harmonization, including bottom sediments and aerosols.

Conclusions:

• Standardized protocols are crucial for accurate and comparable microplastic research.
• Adoption of these protocols will enhance understanding of microplastic pollution in the Gulf region.
• The proposed framework can benefit similar studies in other marine ecosystems worldwide.