If you have allergies, chances are there's more to it than nature herself shooting pollens, molds and dust into the air. Head down to the Family and Consumer Sciences building, Room 101, from 3:30 p.m. to 4:45 p.m. to hear Mark Witten of the Arizona Health Sciences Center present "Air Quality Implications for Human Health." The lecture is free. For more information, call Sandy Jacobson at 792-8712, e-mail her at saj2@u.arizona.edu, or visit the Web site at http://www.ispe.arizona.edu/events/spring2002/.

Want to add a hop to your hip or a wang to your chung? Go to Centennial Hall at 7:30 p.m. to learn modern dance steps from choreographer Ronald K. Brown through UApresents. The event precedes Brown's "EVIDENCE Infuses Modern Dance with Kinetic Spirituality" performance Friday at Centennial Hall. Brown uses ballet moves combined with West African traditional dance to move the crowd. For more information, contact Wade Colwell at 626-4420.

UApresents isn't done for the day, though. Executive director Ken Foster joins countertenor opera star David Daniels for a chat session at the Aerospace and Mechanical Engineering auditorium tonight at 7:30. Daniels will perform Wednesday at Centennial Hall. The chat session is free. Contact the Centennial Hall Box Office at 621-3341 or visit UApresents' Web site at http://uapresents.arizona.ed/0102performance.html or the Los Angeles Opera Web site at http://www.laopera.org.

Calling all graduates-to-be: the Teach For America corps, which asks recent graduates to volunteer two years teaching in urban and rural public schools is here and ready to accept qualified individuals who want to share their leadership skills. Go to the Slonaker House, living room, at 5 p.m. to find out more about the program and what you can do to make a difference. All majors are welcome, and no previous education experience is necessary. Teachers will be paid full salary plus a $9,450 education award and loan forbearance. For more information, contact Erin Attfield at 504-533-7774, e-mail her at eattfield@teachforamerica.org or visit the Web site at http://www.teachforamerica.org.

If you played soccer at any point in your life, get ready for a twist. The Intramural Speed Soccer Tournament runs from noon to 6 p.m. What is it? It's two rag balls and a full gym court of nothing but fast, intense action. The tournament is single elimination and teams cost $14. Stop by the Student Recreation Center, Intramural Office, Room 218, before play begins at noon. For more information, contact MontŽ Reed at 621-8723, e-mail the office at imsports@email.arizona.edu or visit the Web site at http://campusrec.arizona.edu.