Summations Only

While there is no safe level of lead exposure, US health bodies regard 5 micrograms per deciliter of blood as the level that is cause for concern. This research finds that people using shooting ranges can record blood-lead levels as high as 40 micrograms.

"The kind of blood-lead levels found among shooters can lead to essential tremor, hypertension, cardiovascular-related mortality, electrocardiography abnormalities, decreased kidney function, psychiatric effects, decreased hearing, decreased cognitive function, decreased fertility, incidence of amyotrophic lateral sclerosis, adverse sperm parameters, increased spontaneous abortion, and reduced fetal growth in children."