Atmospheric concentration of PM10 elements (including REEs) measured in Tunisian desertic region

Air concentration of elements collected near Medenine, Tunisia, during a two weeks field campaing from March 29th to April 7th 2016, and using two different sampling head: a newly designed stainless steel decanter, VTD, and a brand-new aluminium alloy commercial PM10 sampling head, both operating at a flow rate of about 1 m3 h−1. A total of 16 paired samples were collected during a 2-week field experiment, at the Institut des Régions Arides campus, 20 km north of the city of Medenine, Tunisia. The collection site (33°29'58.62′′ N – 10°38′35.2′′ E), surrounded by dry lands, is 5 km south-west of the Boughrara Gulf. The two sampling devices were fixed to the roof of the highest building on campus (about 20 m). Both the VTD and PM10 were attached to a tubular stand, with a distance of about 30 cm between them. This dataset was used to compare both sampling heads and could be used as an examples of desert dust.

2016年3月29日至4月7日，在突尼斯梅德宁（Medenine）附近开展了为期两周的野外采样，采集空气中元素浓度数据。本次采样使用两种不同的采样头：一种为新研发的不锈钢沉降器VTD，另一种为全新的铝合金商用PM10采样头，二者采样流量均约为1 m³·h⁻¹。本次为期两周的野外实验共获取16组配对样品，采样点位位于突尼斯梅德宁以北20公里的干旱地区研究所（Institut des Régions Arides）校园内。该采样点位坐标为北纬33°29′58.62″、东经10°38′35.2″，周边为旱地，距离布赫拉腊湾（Boughrara Gulf）西南5公里。两套采样装置均安装在校园内最高建筑的屋顶（高度约20米），VTD与PM10采样头通过管状支架固定，二者间距约30厘米。本数据集可用于对比两种采样头的性能，同时可作为沙漠粉尘采样的示例案例。