The Telescope Array (TA) experiment continues to observe Ultra High Energy Cosmic Rays(UHECRs) both with its original TA detectors as well as with the new TAx4 expansion detectors.These observations employ Fluorescence Detectors (FDs) to capture the air shower induced bythe primary UHECRs. The FD observes fluorescence light emitted from atmospheric nitrogenmolecules excited by air shower particles. The observation of the FD extends over tens ofkilometers, and the fluorescence light is attenuated by scattering from atmospheric molecules andaerosols during the propagation process. Seasonal dependence was found when assessing theattenuation of fluorescence by aerosols. We also captured the weather characteristics. We reporton the effect of aerosols on the atmospheric transparency of the TA site