Вот нарыла для вас:"A couple of things that you're going to want to keep in mind if you have young children at home are the chemicals in the dirt, the sand, the potting soil, the mulch, all those things that are in your back yard. They can actually pose some very serious hazards to children, or to actually anybody who ingests them. Potting soil obviously has chemicals that help plants grow as well as plant food. You don't want your children getting into any of that so be sure that you keep those bags stored away safely. And any sort of mulch that is around, any open area of planting, it's very easy for a child to crawl over and grab some mulch and stick it in their mouths, and there are obvious poisoning as well as choking hazards with that. Dirt, you want to be sure that there aren't any weed killers or pesticides or anything that's used on your lawn and then, you know, that your children then can reach out, and you know, stick a mouthful or a handful into their mouths. You want to be careful that you are always aware of what's actually being put into your, into your lawn in your backyard and if there are any sort of dangerous chemicals that are being used,be sure that your child is safe from them. Also, if you're going to have a sandbox in the back yard, be sure that you do your homework and find play sand, because there is a difference between play sand and construction sand and you can ask for help at your home store or your local toy store and they'll be sure to let you know which is safe for your child and which is not."http://www.ehow.com/video_4958742_soil-nutrients-safety.htmlThis HearthSong toy sand box for children is made of plastic 'timbers', which avoids splinters, chemical preservatives, warping, cracking, and rot. The plastic sides also fit securely together to keep the sand off your lawn and inside our sandboxes.