Single particle inductively coupled plasma mass spectrometry (SP-ICP-MS) has become a well-established technique for the detection, size characterization and quantification of inorganic nanoparticles but its use for the analysis of micro- and nanoparticles composed of carbon has been scarce. Here, the analysis of a microplastic suspensions by ICP-MS operated in single particle mode using microsecond dwell times is comprehensively discussed. The detection of polystyrene microparticles down to 1.2 μm was achieved by monitoring the 13C isotope. Plastic microparticles of up to 5 μm were completely volatized and their components atomized, which allowed the detection of microplastics, their quantification using aqueous dissolved carbon standards, and the measurement of the size-distribution of the detected particles. Limits of detection of 100 particles per milliliter were achieved for an acquisition time of 5 min. The method developed was applied to the screening of microplastics in personal care products and released from food packagings. The chemical identity of the detected microplastics was confirmed by attenuated total reflectance Fourier-transform infrared spectroscopy.
Guidelines on Extended Producer Responsibility for Plastic Packaging. These guidelines provides framework for implementation of Extended Producer Responsibility. The Guidelines provide the roles and responsibilities of Producers, Importers, Brand Owners, Central Pollution Control Board, State Pollution Control Board or Pollution Control Committees, recyclers and waste processors for effective implementation of Extended Producer Responsibility. Please note[…]
The Policy Brief gives an overview of the current waste management related policy ecosystem and provides preliminary recommendations based on desk research, specifically on marine litter in India.
The Government of India announced the Plastic Waste Management Amendment Rules, 2021, which will prohibit the manufacture, import, stocking, distribution, sale and use of single use plastics (including polystyrene and expanded polystyrene) by 2022. To stop litering and promote reuse, the thickness of plastic carry bags have been increased. Please note that “English text follows[…]
Environment ministers around the globe agreed to create an Intergovernmental Negotiating Committee to create an international agreement to end plastic pollution at the fifth United Nations Environment Assembly (UNEA), held in Nairobi, Kenya, between February 28 and March 2, 2022.
Developing country facilities, financial and human resources prevent complete application of sampling, analysis, and observation protocols used in developed countries neccitating adaptations. Researchers in Vietnam developed and standardized a methodology for microplastic monitoring in sediments and surface waters of 21 environments (rivers, lakes, bays, beaches) of eight cities or provinces. The concentrations of microplastics in[…]