In conclusion, XRF based techniques prove suitable but also exceptionally well-suited for the analysis of PM. Its versatility, and ability to provide detailed data on constituent elements, coupled with its advantages in terms of ease of use, make it an unparalleled choice for PM characterization across a wide range of applications, reaffirming its indispensable role in environmental research and public health protection. The adoption of green principles in elemental analysis emphasizes sustainability, efficiency, and reduced environmental impact, aligning with the growing demand for greener analytical practices. The entire analytical process optimization with a green mindset, from sample preparation to XRF analysis minimizes waste generation, reduces the use of hazardous reagents, significantly improving the sustainability of the elemental analysis process with respect to the traditional standardized techniques. The incorporation of automated devices further enhances the efficiency of sample preparation while reducing both time and reagent consumption. This forward-thinking approach fosters a greener and more sustainable future for analytical science. XRF techniques' compatibility with existing PM sampling methods on filters allows for seamless integration, and its application will drive innovation in the development of a comprehensive green methodology encompassing sample preparation, and measurement, coupled with quantitative analysis calibration using fit-for-purpose RM. Considering the advantages listed in the reviewed papers, the European and International standardization of XRF methods for PM analysis emerges as a pivotal stride toward harmonizing data collection, analysis, and interpretation across research and regulatory framework. The adoption of standardized methods not only fosters comparability between studies but also boosts the credibility of XRF analysis of PM, underpinning informed decision-making and safeguarding environmental and public health. In this way, researchers can make significant contributions to understanding air pollution, mitigating its harmful effects on human health, and protecting the environment, ultimately promoting environmentally responsible practices, and advancing the principles of green chemistry, paving the way for a healthier and more sustainable future.