Child pornography represents a severe form of exploitation and victimization of children, leaving the victims with emotional and physical trauma. In this study, we aim to analyze local patterns of child pornography consumption across 1341 French communes in 20 metropolitan regions of France using fine-grained mobile traffic data of Tor network-related web services. We estimate that approx. 0.08 % of Tor mobile download traffic observed in France is linked to the consumption of child sexual abuse materials by correlating it with local-level temporal porn consumption patterns. This compares to 0.19 % of what we conservatively estimate to be the share of child pornographic content in global Tor traffic. In line with existing literature on the link between sexual child abuse and the consumption of image-based content thereof, we observe a positive and statistically significant effect of our child pornography consumption estimates on the reported number of victims of sexual violence and vice versa, which validates our findings, after controlling for a set of spatial and non-spatial features including socio-demographic characteristics, voting behaviour, nearby points of interest and Google Trends queries. While this is a first, exploratory attempt to look at child pornography from a spatial epidemiological angle, we believe this research provides public health officials with valuable information to prioritize target areas for public awareness campaigns as another step to fulfil the global community's pledge to target 16.2 of the Sustainable Development Goals: "End abuse, exploitation, trafficking and all forms of violence and torture against children".

翻译：儿童色情是对儿童的严重剥削和侵害形式，给受害者造成情感和生理创伤。本研究利用Tor网络相关服务的细粒度移动流量数据，分析了法国20个大都市区1341个市镇的儿童色情消费地方模式。通过将Tor移动下载流量与地方级时间性色情消费模式关联，我们估计法国观测到的Tor移动下载流量中约0.08%与儿童性虐待材料消费相关。相比之下，我们保守估计全球Tor流量中儿童色情内容占比为0.19%。与现有关于性虐待儿童与相关图像内容消费之间关联的文献一致，在控制包括社会人口特征、投票行为、附近兴趣点和谷歌趋势查询在内的一组空间及非空间特征后，我们观察到儿童色情消费估计值对报告的性暴力受害者人数存在积极且统计显著的影响，反之亦然，这验证了我们的发现。虽然这是从空间流行病学角度审视儿童色情的首次探索性尝试，但我们相信这项研究为公共卫生官员提供了有价值的信息，以优先确定公众意识宣传活动的目标区域，从而进一步履行国际社会对可持续发展目标16.2的承诺："消除对儿童的虐待、剥削、贩运以及一切形式的暴力和酷刑"。