The chemtrail conspiracy theory holds that some trails left by aircraft are actually chemical or biological agents deliberately sprayed at high altitudes for purposes undisclosed to the general public in clandestine programs directed by government officials.  This theory is not accepted by the scientific community, which states that they are just normal contrails, as there is no scientific evidence supporting the chemtrail theory.Luckily for Sertox, an  expert from Rosario said that there are no toxic materials left by aircraft contrails (see in Spanish), and so we avoided going into subjects lacking scientific evidence to say. So we spent the logo of this number. In this number: 1) An observational study about low-level lead exposure and the prevalence of gout; 2) Carbon Monoxide Poisoning in US: Surveillance, Epidemiology, and Opportunities for Prevention: 3) New high-potency marijuana can interfere with early brain formation in developing fetuses; 4) A new study provides insight on how alcohol may increase cancer risk; 5) A new study provides insight on how alcohol may increase cancer risk, 6) Chronic exposure of industry workers to diacetyl & possibility of long-term neurological toxicity; 7) BPA may be tied to the risk for arterial narrowing, and thereby heart disease; 8) A new method to keep the unwanted glucosinolate from getting into the edible parts of oilseed rape; 9) Triclosan is of concern to both human and environmental health: study; 10) The accumulation of pyrethroids insecticides in dolphins of Brazil; 11) Sea anemones venom is being used by researchers to treat Multiple Sclerosis; 12) CDC alert: Ayurveda linked to lead poisoning in US women; 13) Roundup intoxication with a full recovery after continuous renal replacement therapy ; 14) A presentation about Drugs Abuse in US; 15) US: Health alert about the risk of heavy metal poisoning from folk remedies. We recommended: The presentation at ZooKeys of a new species of spider from US: Trogloraptor marchingtoni Griswold . There are many interesting news. Untill next number. JCP