In your previous post from today and this post, you've been directed as to what is a risk for transmission of HIV. Please review the answers which our members tell you that HIV is transmitted through unprotected sex, vaginal or anal or sharing of IV drug needles. As you are being told, all other concerns are not risks for HIV. We hope that your questions have been answered and are now closing this thread.
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HIV is instantly inactivated in air. In a lab at controlled temperature and special gases it would live a while.
Children and adults have touched lots of blood in playgrounds etc, and never got HIV either, so relax and forget about HIV.