Particulate matter concentration from filtered water bottle AT_II-119/4_11-2

Dregs means the water below the spigot was sampled on a separate filter. MP means a Millipore filter funnel was used to filter the water rather than in-line filtration because of the high concentrations. The Dregs Concentration is the mass filtered from below the bottle spigots divided by the volume of the water filtered from below the spigots, so it includes the particles in the water at the time the bottle was closed. It is assumed that the excess particles below the spigots were distributed throughout the bottle at the time of closure (probably in the form of aggregates). The measured volume of the water bottles used in NABE was 29.6 liters.

残留物指的是从龙头下采集的、经独立过滤器处理的水样。MP表示由于浓度较高，使用Millipore滤斗进行过滤而非在线过滤。残留物浓度是指从瓶口下方过滤出的物质质量与从瓶口下方过滤出的水体积之比，因此它包括了瓶盖封闭时水中的颗粒物。假设瓶口下方的过量颗粒物在封闭时均匀分布在瓶内（可能以聚集体形式存在）。NABE中使用的瓶子水的测量体积为29.6升。