Maximum number of patients was in 1-10 years of age in both the groups - 44.44% in Distilled water group (Group D) and 40.27% in 2% Para
dichlorobenzene group (Group P).
However, creating these sensors requires dissolving nanotubes in a solvent such as
dichlorobenzene, using a process that can be hazardous and unreliable.
Similarly, other compounds may be present in a small number of instances where they have significant impact, such as 1,4
dichlorobenzene (which is used in moth balls and toilet sanitizers).
Greenpeace has found chemicals such as carbon tetrachloride, chloroform, trichloroethene, tetrachloroethene, and
dichlorobenzene, in concentrations ranging from five to 600 times the safety limits.
Included on the list are substances such as
dichlorobenzene, used in pesticides, and naphthalene, the primary ingredient in mothballs.
NSF/ANSI-certified filters can substantially reduce many heavy metals such as copper, lead and mercury; disinfection byproducts; parasites such as Giardia and Cryptosporidia; pesticides; radon and volatile organic chemicals such as methyl-tert-butyl ether (MTBE),
dichlorobenzene and trichloroethylene (TCE).
Another problem was the existence of
dichlorobenzene in two homes in Gelli.
Delfino and London agree that pard
dichlorobenzene may not be the culprit behind the reduced lung function that London's team reports.
These are naturally occurring and man-made chemicals like pesticides, PCBs,
dichlorobenzene, etc.
These included the carcinogens benzene, formaldehyde and styrene, and a cocktail of methanol, ethanol, acetone, toluene,
dichlorobenzene plus a number of less well-known toxics.