Air and water quality control was never so important as nowadays because the global industrialization and consumption. Spectroscopy is daily used as a key technique for that quality control. Some cities all over the world are permanent monitored for the air quality and some restrictions are imposed to the inhabitants of these cities. Also the study and monitoring of the earth's atmosphere is of extreme importance as the Solar irradiance needs to be measure and the UV radiation on earth’s surface most be publish related with health concerns.
New forms of fuel are being developed fast in the last few decades. Biodiesel has been extensively studied and tested, and spectroscopy is always present to determine biodiesel quality. Spectroscopy is helpful thanks to its reduced analysis time and lower reagent consumption. This technique has been used to determine the content of large, heptane-diluted concentration intervals. The research made in the area of biodiesel quality using near infrared and refractive index showed that natural fats and oils from plants and animals contain pigments exhibiting visible absorption. Because of that, it is possible to identify by spectroscopy the purity of chemicals in biodiesel, and consequently, if there is any adulteration in it.
The solar energy through photovoltaic panels, is thriving in many parts of the world. UV-Vis and Raman spectroscopy are very useful tools for the manufacture and production of such equipment. Since the first development of this panels spectroscopy has been used to characterize the quality and sustainability.
- Study of atmosphere composition and variations
- UV irradiation on earth’s surface
- Biodiesel quality
- Solar cells efficiency and aging
- Air pollution and industrial gas emissions
- Water quality analysis