Project information
Hazardous Beauty: Pesticides in Cut Flowers (PESTFLOW)

While the health risks associated with pesticide residues on cut flowers have been known for decades ​(Morse et al., 1979)​, the issue remains a critical blind spot in public health protection. In the European Union, Regulation (EC) No 396/2005 establishes strict Maximum Residue Levels (MRLs) to protect consumers from agricultural chemicals. However, this regulation applies exclusively to food and feed. This legislative loophole exempts non-edible crops like cut flowers, allowing the legal import and sale of ornamental plants coated in highly toxic, and often EU-banned, pesticides (Pesticide Action Network Europe, 2025).

Recent studies reveal severe contamination levels across the market. An analysis of cut flowers in Austria and Germany found pesticide residues in 97% of samples, with over 72% containing active ingredients harmful to human health ​(Chwoyka et al., 2024)​. Imported bouquets frequently carry heavy loads of acutely toxic fungicides and restricted chemicals like carbendazim, propamocarb, and fipronil ​(Warming et al., 2024)​. Single bouquets can harbor up to 25 different toxic substances, averaging a massive total pesticide load exceeding 26 mg/kg (Pesticide Action Network Europe, 2025)​(Toumi et al., 2016)​.

This unregulated, intensive chemical use creates significant human exposure pathways. Florists face severe chronic occupational hazards due to daily dermal contact with these acute toxins ​(Toumi et al., 2016)​ ​(Toumi et al., 2018)​. Furthermore, residents living near cultivation areas, such as flower bulb farms, are subjected to high environmental exposure (Gooijer et al., 2019). This project addresses the urgent public interest of protecting both consumers and workers by exposing the hidden health risks of the unregulated global flower trade.