Tousignant looks at the materiality of the main toxicology lab (apparatus, reagents, gas taps, benches, signs, and reports) to consider how these carry and convey traces of former analytical activity and future horizons into the present to reflect on who makes and moves capacity, and for whom.
For Tousignant’s context, “data” is (largely quantitative) data on exposure to toxic poisons (e.g. snake bites, unknown diseases, etc.) generated about Senegal.