When handled by experts, bio-control is safe, non-polluting and self-dispersing.
由专家控制时，生物防治安全、无污染并且能够自我分散。
2
The ISO labeling standards ban vague or misleading claims on product packaging, because terms such as "environmentally friendly" and "non-polluting" cannot be verified.
ISO 标签标准禁止在产品包装上发表模糊或误导性的声明，因为诸如“环境友好”和“无污染”等术语无法得到验证。
3
The island would also be non-polluting, using natural resources.