Retraction Note: Remote sensing image changes of air pollution based on Internet of things and nutritional intervention of sports athletes

With the rapid development of the Internet of things, based on the application of the Internet of things, this paper publishes air pollution remote sensing image (API) data in 120 major cities every day to capture the characteristics of air pollution index changes in haze weather. In the past 3 years, from a seasonal point of view, the national air pollution index showed a decreasing trend in spring and a gradually increasing trend in winter. From an annual perspective, the air pollution level in China has become more serious in the past 3 years. The API values of many cities are higher than 200, and show a slow growth trend from the northwest to the central and eastern regions. The EOF method was used to evaluate the characteristics of its temporal and spatial changes. The first and second modes and the time coefficient were used to analyze the results. The results showed that the concentration of particulate matter in J city increased steadily with the time of arrival in winter, and the air pollution became more serious. Finally, this paper intervenes and corrects the unreasonable places in the dietary behavior management of male athletes, and checks and evaluates the effect of the intervention measures. In this paper, through 4 weeks of nutritional intervention on athletes, we found that the intake of VA and VB1 increased significantly, and the proportion of three meals reached 30% for breakfast, 40% for lunch, and 30% for dinner, which promoted the improvement of the diversity of food intake of athletes.