Agricultura

OSHA and Safety regulations
Underground
http://www.osha.gov/pls/oshaweb/owadisp.show_document?p_table=STANDARDS&p_id=107903

Control of health hazardhttp://www.cdc.gov/niosh/nas/rdrp/appendices/chapter6/a6-133.pdf
http://www.cdc.gov/niosh/nas/rdrp/appendices/chapter6/a6-135.pdf

Bat Guano Removal Procedurehttp://wonder.cdc.gov/wonder/prevguid/p0000406/p0000406.asp#head003000000000000
http://www.batcon.org/pdfs/batsmines/batsmines_17-25.pdf

Productos derivados de guano
http://www.hydroponics.net/i/133000http://terrificag.en.alibaba.com/product/565008896-213410420/liquid_npk_bat_guano_fertilizer_P2O5_32_organic_fertilizer.html

Histoplasmosis
Protecting Workers at Risk
What is histoplasmosis?
Histoplasmosis is an infectious disease caused by inhaling the sporesof a fungus called Histoplasma
capsulatum. Histoplasmosis is not contagious; it cannot be transmitted from an infected person or animal to
someone else.(1)
H. capsulatum is a dimorphic fungus, whichmeans it has two forms.(2,3) It is a mold (mycelial phase) in soil at
ambient temperatures, and after being inhaled by humans or animals, it produces a yeast phase when spores
undergo genetic,biochemical, and physical alterations.(3) Spores of H. capsulatum are oval and have two
sizes. Macroconidia (large spores) have diameters ranging from 8 to 15 micrometers (μm), and microconidia
(smallspores) range from 2 to 5 μm in diameter.(3) Yeast cells of H. capsulatum have oval to round shapes
and diameters ranging from 1 to 5 μm.(3-5)
Histoplasmosis primarily affects a person's lungs, andits symptoms vary greatly. The vast majority of infected
people are asymptomatic (have no apparent ill effects), or they experience symptoms so mild they do not seek
medical attention and may noteven realize that their illness was histoplasmosis.(6) If symptoms do occur, they
will usually start within 3 to 17 days after exposure, with an average of 10 days.(1) Histoplasmosis can appear
as a...