Here's a look at some of the top health news being talked about around the U.S. and the world today:

• Scientists believe they may have found a link between kids exposed to organophosphates and attention-deficit/hyperactivity DHD, according to a new study. Reported by Reuters, the study published in the journal Pediatrics showed exposure to the pesticides in low concentrations might be harmful.

• A decade-long study probing whether there is a link between cell phone use and brain tumors was inconclusive, according to a report to be published in the journal Epidemiology. The study found most cell phone use did not appear linked to an increased risk for two different types of brain cancer, but it also found 30 minutes or more a day or cell phone use presented some health risk, the Detroit Free Press reported.

• High-fat meals appear to worsen asthma attacks and lead to a worse response to treatment, new research suggests. Patients who ate a meal of burgers and hash browns "experienced increased inflammation in their airways, as opposed to patients who ate a low-fat meal of yogurt," CBS News reported.

To get information about a local environment event or announcement mentioned in the Tuesday environment briefs, contact reporter Tina Reed at tinareed@annarbor.com, call her at 734-623-2535 or find her on Twitter @TreedinAA.