V. Ngành Mói truòng
5. Tóm tàt nói dung cóng trinh;
Sue ép vé già tàng dàn so dàn dén làm tàng he so su dung dàt là vàn de tàc dòng manh dén mói truòng dàt toàn vùng,hoat dòng san suàt cóng nghiép,tài che kim loai dàn dcn ó nhiém ciic bò mòi truòng dàt. Phàn tfch 38 màu thuóc trù sàu cho thày có 22 màu có du lugng diazinon vói hàm lugng tu 1 tói 21lJg/kg >14 màu có chùa Fenonbucarb vói hrgng Uì 1 dén 8 |Jg/kg .Vi vày,sù dung hgp ly lai nguyén dàuhình thành càc cum cóng nghiep nóng thòn va tàng cuòng càc he ihóng xù ly nuóc thài ó càc khu vuc còng nghiep,han che viec su dung HCBVTV là nhung van de hét sue càn duoc quan tàm dói vói vùng DBSH
3. Some Soil environment problems of the Red River Delta. 4. Vietnam Soil Science Journal N" 18, 2003 p. 103 - 107.
(ISSN 0868 - 3743)
5. Population pressure brings about increasing of land - use coefficient causing the impact on soil environment of the whole area.The industial as well as handicraft (metal recycling) activities caused the locai soil pollution. Therefore, the appropriate land use and the formation of the rural industriai centres as well as promotion of waste treatment in rural industriai areas are quite of importance in the Red River Delta. The result of pesticide analysis shows that out of 38 samples, there are 22 samples (58%) with residue diazinon content ranging from 1 to 21 |Jg/kg, 14 samples (37%) with Fenonbucarb changing from 1 to 8 jJg/kg. The pesticide content in those samples is lower than the pcrmitted standards. We found that there was not any peslicide in water samples after 14 days pesticide spraying. Waste water which is used in production of some crops, metal recycling crap contains a relatively high amount of heavy metals such as Zn, Hg, Pb, Cd, Cu... The content of heavy metals in soil, using this waste water, is higher than that of other soils (for instance available content of lead recycling craft at Chi Dao commune, Van Lam district, Hung Yen province where faimers used waste water for irrigation is about 273,63 ppm, and 35,11 ppm in which waste water is not used). This problem must be taken into account.
Therefore, the appropriate land use with minerai fertilizer and pesticide application and the planning of the rural industriai centers as well as promotion of waste treatment in rural industriai areas are quite importance in the Red River Delta. VII. Ngành Mói truòng
1. Hg va tén tàc già cóng trinh: PGS.TS. Le Due, CN Tran Thi Tuyét Thu 2. Nàm: 2000
3. Tén bài bào: Buóc dàu nghién cùu khà nàng hùt thu va ifch IQy chi trong beo tày va rau muóng trong nén dàt bi ó nhiém.
4. Tén tap chi: Thòng bào khoa hgc cùa càc truòng Dai hgc - Khoa hgc Mói truòng. NXB. Vu khoa hgc cóng nghé, Bó giào due va dào tao, 49 Dai Có Viét - Ha Nói. Ha Noi - 2000. Trang 52 - 57.
5. Tóm tàt nói dung:
, Thf nghiem dirgc tién hành voi dàt bi ò nhiém chi. Hàm lugng chi long so, tan trong HNO3 , tan trong nuóc tuong ù'ng là 2210,39 ppm; 1740,89 ppm va 1,65 ppm dugc dùng de tróng beo tày hàm krgng chi tòng so tan trong HNO., lan trong nuóc tuong ùng là 2255,97 ppm, 1747,53 ppm va 1,88 ppm dugc dùng de tróng rau muóng sau 60 ngày tróng hàm krgng chi tóng so trong dàt tuong ùng là 1962,71 ppm va
1872,54 ppm giàm 1 1,2 % va 16,98% .Hàm lugng chi irong dà't ihrac ciùél bang UNO,
giàm tuong ùng là 9,2% va 12,19%. Sau 60 ngày sinh truòng va phàt trién rau muóng dà hùt thu 68 kg chi ( tfnh cho 1 hecta)và beo tày da hàp thu 29,85 kg chi ( tinh cho 1 hecta). ,'
3. The preliminary research on adsorption capacity and concentration of lead in water hyacinth (eichnria) and water morning - glory on the polluted soils.
4. Scientific bulletin of Universities - Environment Sciences. Publishing House of Ministry of Education and training department of science and technology, 49 Dai Co Viet - Ha Noi - Viet Nam. Ha Noi - 2000, p 52 - 57.
5. The research is carried out on the lead polluted soil collected from Dong Mai village. Chi Dao commune, Van Lam district, Hung Yen province: The total, HNO^ solute, and water solutes contents of lead is 2210.39 ppm, 1740.89 ppm and 1.65 ppm respectively for soil grown water morning - glory. After 60 days of plani growth, the total contents of lead is 1962.71 and 1872.54 ppm, decreased 11.2% and 16.98% respectively for water hyacinth and water morning - glory soils. The content of lead extracted by HNO^ is decreased 9.0 and 12.19% respeclively. Howevcr, content solulc in the water increased con*esponding to 17.63 and 75%.
In the other band, the content of lead in water morning-glory increased from 0.281 mg to 40.11 mg per Ikg of fresh mailer (calculated about 127.32 times higher). At the same time, the content of lead in water hyacinth increased from 0.163 to 98.12 mg per Ikg of fresh matter (about 157.07 time higher).
The calculation for 60 days of growth, water morning glory and water hyacinth can uptake 12.68 and 29.85 kg Pb per ha respectively.
Vili. Ngành Mói truòng
L Hg va tén tàc già cóng trinh: PGS.TS. Le Due, CN Nguyén Xuàn Huàn, Nguyén
Thi Due Hanh, Tran Thi Tuyét Thu
2. Nàm: 2005
3. Tén bài bào: Ành huòng cùa kim loai nang Cir\ Pb-"" dén giun dàt {Pheretima morrissi) va cày rau cài {Brassiea Juneea)
4. Tén tap chi: Tap chf Khoa hgc Dàt so 22/2005 trang 95-100 5. Tóm tàt nói dung:
Tién hành thf nghiem trén loai dàt phù sa song Hóng khòng dugc bòi hàng nàm (vùng chuyén canh tróng rau) tai xà Nam Hóng, Dòng Anh, Ha Nói. Bó tri thf nghiém theo TCVN 5962/1995 (ISO 11269-1/1993)
Két qua thu dugc nhu sau: - Dói vói giun dàt:
Sau 7, 14, 21 ngày kicm ira ành huóng cùa Cu""" dói vói giun dàt là khà rò ràng, hàm lugng Cu^" càng cao, ty le tàng truòng cùa giun càng han che. Sau 7 ngày kiém tra
giun, a nòng dò 500ppm giun chét gàn hét, a nóng dò lOOOppm giun chét hoàn toàn
Ành huóng cùa Pb'" ó càc nóng dò thf nghiém dói vói giun dà't khóng rò ràng, vi vày dàn tién hành nàng nong dò chi lén 1500, 2000. 3000 ppm. Sau 7 ngày kiém tra LC50 ò nóng dò 2500ppm
Su tich luy dóng va chi a giun dat sau 35 ngày tàng theo su tàng nóng dò chà't ó
nhièm. ò cùng mot nóng dò, hàm luang dóng dugc tfch luy trong giun cao hon nhiéu so
vói chi
- Dói vói rau cài
+ Sau 7, 14, 21 ngày kiém tra Cu^^ dà có ành huóng rò rét dén su phàt trién cùa chiéu cao cày, chiéu dai ré va so là trén mói cày. Sau 7 ngày tai nóng dò 200ppm dà có hién tugng den rè. Tai nóng dò 500ppm, sau 14 ngày dà có hién tugng thói dén thàn
-h Anh huong cùa chi: Tai nóng dò tu 0 - lOOppm thi chua có ành huóng rò rét dén sinh truòng cùa rau cài. Tién hành vói nóng dò cao hon cho thày ó nóng dò 1300ppm bàt dàu mói xuàt hién ành huóng cùa Pb^"" sau 7 ngày dua Pb'"" vào dàt.
3. Effect of heavy metals (copper, lead) on earth worms (pheretima morrisi) and cabbage (brassicajuncea)
4. Viet nam Soil sciences, No 22/2005 pages: 95 - 100 5. Summary
Development of industriai, agricultural productions and handicraft activities have strongly affected on soil environment and caused soil pollution, especially by heavy metals. This study aimed to asses the effect of Cu~"^, Pb^"^ on growth of earth worms and cabbage
Experiments were appied on alluvial soils of Red River Delta with three replication according to TCVN 5962/1995 (ISO 11269-1/1993). The copper, lead contentralions were applied: 0, 50, 100, 200, 500, lOOOppm
The foliowing result were find out:
- For earth worms:
+ After 7, 14, 21 days, the effect of copper on earth worms were very evident.
More and more copper concentration. At concentration of 500ppm, after 7days, almost earth worms were dead, and at lOOppm, the dead totally.
-H Effect of lead on earth worms were not evident at ali conducted concentration. After 7days, LC50 was found 2500ppm
-h The accumulation of Cu""", Pb-"" after 35days in the earth worms was increased with copper and lead concenlration used. Al the same concentration, copper was accumulated more than lead one.
- For cabbage:
-HAfter 7, 14 and 21 days copper effected considerably on plani height, rool longly and leavers amount. After 7days at concentration of 200ppm root was become black, and after 14 days at concentration of 500ppm appeared necrotic of the stems
+At lead concentration from o lo lOOOppm was noi effected on growth of cabbase. At Pb'^ concentration of 1300ppm after 7 days, lead was effected on thes cabbage,
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SCIENCTIFIC PROJECT
Branch: Soil Science Project category: VNU