>>461202http://www.atsdr.cdc.gov/consultations/deet/health-effects.htmlhttp://www.biomedcentral.com/1741-7007/7/47http://toxsci.oxfordjournals.org/content/60/2/305.shortCome on man your citation is a cartoon. Long term effects on heavy to moderate users are very real.
from the BMC study...'A study was done involving 143 National Park Service employees at Everglades National Park to determine the effects of DEET on varying use groups. Exposure groups were classified as low (non-users), medium (0.01-0.52 g/day) and high (0.71-69.38g/day) use of DEET. It was found that 36 of the workers (25%) reported health effects that they attributed to DEET. These effects included rashes, skin or mucous membrane irritation, transient numb or burning lips, dizziness, disorientation, and difficulty concentrating. Headache and nausea were also reported. A statistically significant difference was not found between reported effects from high-exposure and medium-exposure workers, although the incidences were significantly higher than in the non-users (McConnell et al. 1987). "
Read the literature, it in no way suggests DEET is safe.
Using a 30% formulation10 times a year...no problem.
Use a 100% 150 days a year and it becomes increasing unsafe.