Radon (Rn_air) was monitored in open air in publicly accessible areas surrounding the Pinenut uranium (U) mine during mining and reclamation activities in 2015–16 to address concerns about mining related effects to areas surrounding Grand Canyon National Park (GCNP) in Arizona, USA. During July 2015, Rn_air concentrations associated with the ore storage pile monitoring site were larger than those at the mine vent monitoring site and likely resulted from the relatively large amount of ore stored on site during this period. Higher wind velocities at the ore pile monitoring site generally resulted in lower Rn_air concentrations; however, wind velocity did not appear to be an important factor in controlling Rn_air concentrations at the mine vent monitoring site. Physical disturbances of the ore pile by heavy equipment did not coincide with elevated Rn_air concentrations at the ore storage pile or mine vent monitoring sites. The relative size of the ore storage pile showed a positive trend with the daily mean Rn_air concentration measured at the ore pile monitoring site. Principal component analysis (PCA) was applied to the ore pile and mine vent multivariate data sets for simultaneous comparison of all measured variables during 230 days of the study period. A significant positive coefficient for Rn_air was associated with a significant negative coefficient for wind speed for principal component (PC) 2_{ore pile}. Significant, positive PC2_{mine vent} coefficients included Rn_air, wind direction, and relative ore pile size indicating that Rn_air variations at the mine vent monitoring site may be affected by Rn sourced from the ore pile. The ore pile is located about 200 m south of the mine vent Rn monitor with the prevalent wind direction coming from the south. All data generated during the field study and laboratory verification tests were published by Naftz et al. (2018) and are available online at: https://doi.org/10.5066/F79Z946T.

在2015-16年度的采矿和填海活动中，在Pinenut铀（U）矿周围的公共区域对露天进行了monitored气（Rn_空气）监测，以解决人们对亚利桑那州大峡谷国家公园（GCNP）周围地区的采矿相关影响的担忧， 美国。在2015年7月期间，与矿石堆桩监测点相关的Rn_空气浓度高于矿井出口监测点处的Rn_空气浓度，这很可能是由于此期间在现场储存的大量矿石所致。矿石堆监测站的较高风速通常导致较低的Rn_空气浓度；然而，风速似乎并不是控制Rn_空气的重要因素排烟口监测点的浓度。重型设备对矿石堆造成的物理扰动与矿石存储堆或矿井出口监测点处的Rn_空气浓度升高不符。矿石堆的相对大小呈正趋势，在矿石堆监测点测得的日平均Rn_空气浓度。将主成分分析（PCA）应用于矿石堆​​和矿井排气多元数据集，以便在研究期间的230天内同时比较所有测量变量。对于主成分（PC）2_矿石堆，Rn_空气的显着正系数与风速的显着负系数相关。积极的PC2_{矿井通风口}系数包括Rn_空气，风向和相对的矿石堆大小，表明矿井通风口监测点处的Rn_空气变化可能会受到来自矿石堆的Rn的影响。矿石堆位于排风口Rn监测仪以南约200 m处，主要风向来自南部。Naftz等人发表了在现场研究和实验室验证测试期间生成的所有数据。（2018），并可在线访问：https：//doi.org/10.5066/F79Z946T。