UPDATE: Acid fumes caused illness at Riverdale High - WKOW 27: Madison, WI Breaking News, Weather and Sports

UPDATE: Acid fumes caused illness at Riverdale High

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UPDATE: MUSCODA (WKOW)--- A HAZMAT team determined acid fumes from the science lab combined with the heat likely caused about 15 students to fall ill at Riverdale High School, according to District Administrator Bryce Bird.

According to Bird, all the students who fell ill have been released from the hospital and are improving. The HAZMAT team ruled out mold, gas and carbon monoxide as the source of the illness.

Bird says the building is safe to enter and as a precaution all chemicals are being removed from science rooms for the remainder of the school year. Bird says the district will use the summer to reevaluate the chemicals stored in the classrooms.

Classes will be in session as scheduled on Monday.


MUSCODA (WKOW) -- A HAZMAT team from Illinois is on the scene at Riverdale High School in Muscoda Friday evening, trying to help find out what sent roughly 15 of the school's students to the hospital.

The students became ill and the school was evacuated around 1:00 p.m. Friday. Some adults were being allowed into the school Friday evening to retrieve items, but no students have been back inside the facility. Riverdale District Administrator Bryce Bird says no decision had been made Friday evening about canceling classes on Monday and notes parents would be notified.

Bird says he's not sure how many students are still in the hospital. He says the ill students experienced symptoms like dizziness, light-headedness, heavy limbs and chills. He adds all their symptoms seemed to get better when they were given oxygen.

Some of the students treated had small levels of carbon monoxide in their systems, according to Bird, but the district was told by doctors those levels were not high enough to account for the student's symptoms.

Bird says all of the students who became ill were in the area of the school that houses science classes in the morning or early afternoon.


Stay tuned to WKOW 27 News and www.wkow.com for updates on this developing story.

MUSCODA (WKOW) -- Roughly 10 Riverdale High School students have been taken to the hospital after becoming ill at the school, and several more have reported feeling ill.

The school district tells WKOW 27 News the high school was evacuated around 1:00 p.m., as a result of the illnesses. A representative of the district also said they were not sure what caused the students to get sick, but representatives from fire, EMS and We Energies were at the school.

Evacuated students were taken to the elementary and middle schools. 

The Wisconsin State Journal reports the high school serves about 150 students.

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