Ho^` bo+i

["HUY DUONG" <huy.duong@ctsu.ox.ac.uk>]

Cha`o ca'c ba'c,

Tui tha^'y ma^?u tin na`y, kho^ng bie^'t tu+` -da^u:

> DDo+n cu+? mo^.t va`i vi' du. dde^? ba.n ddo.c tie^.n tham kha?o. Be^?
> bo+i Ba DDi`nh, thuo^.c qua?n ly' nha` nu+o+'c co' 2.200 ho^.i vie^n
> "co' the?," nguye^n so^' ho^.i vie^n na`y dda~ pha?i chia ra la`m sa'u
> ca mo+'i ddu? cho mo^~i ngu+o+`i ta('m mo^.t la^`n trong nga`y. Ngoa`i
> ra, be^? bo+i co`n tie^'p nha^.n chu+`ng 400 ngu+o+`i dde^'n bo+i mo^~i
> nga`y theo kie^?u mua ve' tu+. do. O+? be^? bo+i Nghi~a Ta^n, o^ng Ngo^
> Quy' DDa.t, ky~ su+ thie^'t ke^' cho bie^'t: "Ki'ch thu+o+'c cu?a be^?
> bo+i la` 10m x 5m, cho^~ no^ng nha^'t la` 0,7m va` sa^u nha^'t la` 1,4m
> vo+'i su+'c chu+'a to^'i dda la` 120 ngu+o+`i." Khoa?ng na(m gio+`
> chie^`u, dde^'m ddu+o+.c kho^ng du+o+'i 150 ngu+o+`i va` nhu+ va^.y,
> mo^~i ngu+o+`i chi? ddu+o+.c ga^`n 1,7m2 ma(.t nu+o+'c chu+' kho^ng
> pha?i 2m2 nhu+ thie^'t ke^'. Thu+? ho?i vo+'i 1,7m2, ngu+o+`i ta chi?
> ddu+'ng nga^m mi`nh chu+' bo+i lo^.i la`m sao ddu+o+.c. Ngay be^? bo+i
> thuo^.c Trung ta^m the^? thao va(n ho'a qua^.n Ba DDi`nh (180 Quan
> Tha'nh) ddu+o+.c coi la` thoa?i ma'i ho+n ca? cu~ng chi.u su+. qua'
> ta?i. Vo+'i ki'ch thu+o+'c 5,5m x 17m, be^? chi? chu+'a ddu+o+.c to^'i
> dda 30-45 ngu+o+`i/lu+o+.t nhu+ng thu+.c te^' so^' ngu+o+`i xuo^'ng
> be^? bo+i vu+o+.t qua con so^' ddo'.
>... 
> DDe^? be^? bo+i hoa.t ddo^.ng an toa`n, sa.ch, dda?m ba?o ve^. sinh
> mo^i tru+o+`ng ca^`n thay nu+o+'c i't nha^'t la` mo^.t la^`n/nga`y va`
> du`ng ca'c ho'a cha^'t nhu+ Sulfat ddo^`ng, nu+o+'c Javen H2O2 khu+?
> tru`ng, khu+? mu`i, v.v... Tuy nhie^n, va^'n dde^` na`y thu+o+`ng
> ddu+o+.c ca'c o^ng chu? be^? bo+i bo? qua cha(?ng ma^'y khi thu+.c
> hie^.n. No'i kho^ng ngoa, to+'i 90% be^? bo+i o+? Ha` No^.i kho^ng ba?o
> dda?m an toa`n ve^. sinh mo^i tru+o+`ng va` su+'c kho?e cho nhu+~ng
> ngu+o+`i bo+i lo^.i. 

Hi`nh nhu+ recommendation o+? Ta^y A^u la` cho va`o ho^` 30 li't 
nu+o+'c sa.ch cho mo^~i ngu+o+`i du`ng ho^` bo+i (-Du+'c
cho va`o 60l, Anh cho va`o 10l :-(), chu+' tie^`n -da^u ma` thay
nu+o+'c ha`ng nga`y.

Va` hi`nh nhu+ ngu+o+`i ta thu+o+`ng du`ng chlorine -de^? sa't
tru`ng vi` no' re?.

Hm...co' tie^`n -da^`u tu+ va`o ho^` bo+i o+? VN thi` cu~ng hay hi?. 

Huy